BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

Odisha State Board  BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी Textbook Exercise Questions and Answers.

BSE Odisha Class 9 Hindi Solutions Poem 3 राहुल जननी

प्रश्न और अभ्यास (ପ୍ରଶ୍ନ ଔର୍ ଅଭ୍ୟାସ)

1. इन प्रश्नों के उत्तर दो-तीन वाक्यों में दीजिए :
(ଇନ୍ ପ୍ରକ୍ଷ୍ନୌ କେ ଉତ୍ତର୍ ଦୋ-ତୀନ୍ ବାକେଁ ମେଁ ଦୀଜିଏ) ।
(ଏହି ପ୍ରଶ୍ନଗୁଡ଼ିକର ଉତ୍ତର ଦୁଇ-ତିନୋଟି ବାକ୍ୟରେ ଦିଅ ।)

(क) राहुल को चुप कराने के लिए यशोधरा क्या कहती है?
(ରାହୁଲ୍ କୋ ଚୁପ୍ କରାନେ କେ ଲିଏ ୟଶୋଧରା କ୍ୟା କହତୀ ହି ? (ରାହୁଳକୁ ବୋଧ କରିବାପାଇଁ ଯଶେ।ଧରା କପ୍ କିଶ କହିଛନ୍ତି।)
उत्तर:
राहुल को चुप कराने के लिए यशोधरा यह कहती है कि मेरे भाग्य में रोना तो लिखा है। तेरे सारे कष्ट मिटाऊँगी। हमारे जीवन में जो कुछ आएगा, उसे सहना पड़ेगा। मैं तुझे अपना दूध पिलाकर और सारी स्नेह – ममता देकर पालूँगी।

(ख) अबला (दुर्बला नारी) जीवन की कहानी कैसी है?
(ଅୱଲା ଜୀବନ୍ କୀ କାହାନୀ କୈସୀ ହୈ ? (ଦୁର୍ବଳ ସ୍ତ୍ରୀର ଜୀବନର କାହାଣୀ କିପରି ଅଟେ ?)
उत्तर:
अबला जीवन की कहानी हृदय विदारक है। यशोधरा अपने आपको दासी से भी पराधीन मानती है। पतिदेव के बिना पत्नी का जीवन अधुरा होता है। उसे सास्वत प्रेम से बंचित होना पड़ता है।

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

2. निम्नलिखित प्रश्नों के उत्तर एक या दो वाक्यों में दीजिए।
(ନିମ୍ନଲିଖୂ ପ୍ରଶ୍ନ କେ ଉତ୍ତର୍ ଏକ୍ ୟା ଦୋ ବାର୍କେ ମେଁ ଦୀଜିଏ) ।
(ନିମ୍ନଲିଖ ପ୍ରଶ୍ନଗୁଡ଼ିକର ଉତ୍ତର ଗୋଟିଏ ବା ଦୁଇଟି ବାକ୍ୟରେ ଦିଅ ।)

(क) यशोधरा किसे अभागा कहती है?
ୟଶୋଧରା କିସେ ଅଭାଗା କହତୀ ହୈ ? (ଯଶୋଧରା କାହାକୁ ହତଭାଗ୍ୟ କହିଛନ୍ତି ?)
उत्तर:
यशोधरा अपनी पुत्र राहुल को अभागा कहती है।

(ख) ‘मैं तो हूँ रोने को’ यहाँ ‘मैं’ किसकेलिए प्रयुक्त हुआ है?
(ମେଁ ତୋ ହ୍ଁ ରୋଲେ କୋ ୟହାଁ ମେଁ କିସ୍କେ ଲିଏ ପ୍ରଯୁକ୍ତ ହୁଆ ହୈ ?)
(ମୁଁ ତେଣୁ କାନ୍ଦିବାକୁ’ ଏଠାରେ ମୁଁ କାହା ପାଇଁ ବ୍ୟବହୃତ ହୋଇଛି ।)
उत्तर:
यहाँ ‘मैं’ गौतम के पत्नी सहधर्मिणी यशोधरा के लिए प्रयुक्त हुआ है।

(ग) यशोधरा क्या धोने की बात करती है?
(ୟଶୋଧରା କ୍ୟା ଧୋନେ କୀ ବାତ୍ କରତୀ ହୈ ?)
(ୟଶୋଧରା କ୍ୟା ଧୋନେ କୀ ବାତ୍ କରତୀ ହୈ ?)
उत्तर:
यशोधरा अभागे पुत्र राहुल की सारी कष्ट मिटाऊँगी की बात करती है।

(घ) ‘नयन-नीर’ का अर्थ क्या है?
(‘ନୟନ୍-ନୀର୍’ କା ଅର୍ଥ କ୍ୟା ହୈ ? )
(ନୟନ-ନୀରର ଅର୍ଥ କ’ଣ ?)
उत्तर:
‘नयन-नीर’ का अर्थ दुःख की आँसू परन्तु यहाँ अर्थ है कि मातृस्नेह ममता देकर यशोधरा अपने पुत्र को पालूँगी।

(ङ) ‘दानी-प्रभु’ किसके लिए कहा गया है?
(‘ଦାନୀ-ପ୍ରଭୁ’ କିସ୍ କେ ଲିଏ କାହା ଗୟା ହୈ ?)
(ଦାନୀ ପ୍ରଭୁ’ କାହାପାଇଁ କୁହାଯାଇଛି ?)‘
उत्तर:
दानी प्रभु गौतम के लिए कहा गया है।

(च) यशोधरा को कौन छोड़कर चले जाते हैं?
(ଯଶୋଧାରା କୋ କୌନ୍ ଛେ।ଡ଼ି ଚଳେ କାତେ ହିଁ। ଯଶୋଧାରା କୁ କିଏ ଛ।ଡ଼ି ଚାଲି ଯଇଚ୍ଛନ୍ତି)
उत्तर:
यशोधरा को अपने पतिदेव गौतम बुद्ध छोड़कर चले जाते हैं।

(छ) ‘नयन – नीर’ ही उनको दूँगी” – यहाँ यशोधरा नयन-नीर किसे देने की बात करती है?’
(ଦୂଗୀ-ୟହାଁ ୟଶୋଧରା ନୟନ-ନୀର କିସେ ଦେନେ କୀ ବାତ କରତୀ ହୈ ?) (ଆଖୁର ନୀର’ ହୀ ଉନ୍‌ ଲୁହ ହିଁ ତାଙ୍କୁ ଦେବି ଏଠାରେ ଯଶୋଧରା ଆଖର ଲୁହ କାହାକୁ ଦେବାର କଥା କୁହନ୍ତି ?)
उत्तर:
‘नयन नीर’ ही उनको दूँगी’ यहाँ यशोधरा अपनी पुत्र राहुल को देने को बात करती है। उसका अर्थ है कि मातृस्नेह ममता देकर पालुँगी और स्नेह से कभी पक्षपातिनी न करूँगी।

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

3. खाली स्थान भरिए।
(ଶୂଳ୍ୟୟନ ସ୍ପରଶ କରା)

(क) …………….., हाय ! तुम्हारी यही कहानी।
उत्तर:
अबला-जीवन

(ख) सोकर हम ………………. ही जागे।
उत्तर:
खोकर

(ग) ……………… भी वह आज कहाँ, कल थी जो
उत्तर:
चेरी, रानी

(घ) मेरा ……………… वह, दूध पिये, परिपुष्ट हो।
उत्तर:
शिशु-संसार

भाषा-ज्ञान (ଭାଷା-ଜ୍ଞାନ)

1. विपरीत शब्द लिखिए: (ବିପରୀତ ଶବ୍ଦ ଲେଖ : )
रोता, सोता, खोकर, अभागा, अबला, रुष्ट
उत्तर:
रोता – हँसता
अभागा – भाग्यवान
सोता – जागता
अबला – सबला
खोकर – पाकर
रुष्ट – तुष्ट

2. ‘दानी प्रभु’ में ‘प्रभु’ संज्ञा है और ‘दानी’ विशेषण। इस प्रकार निम्न वाक्यों में से संज्ञा और विशेषण छाँटिए:
(क) काली गाय का दूध मीठा होता है।
उत्तर:
संज्ञा – गाय, विशेषण – काली

(ख) बड़े बाजार में भीड़ लगी रहती है।
उत्तर:
संज्ञा – बाजार, विशेषण – बड़े

(ग) पिताजी ने मुझे दो उपहार दिये।
उत्तर:
संज्ञा – उपहार, विशेषण – दो

(घ) ऊँचे पेड़ पर दो बंदर बैठे हैं।
उत्तर:
संज्ञा – पेड़, विशेषण – ऊँचे

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

3. प्रस्तुत पाठ में से तुकान्त शब्दों को छाँटकर लिखिए:
जैसे : अभागे – आगे।
उत्तर:
रोता – सोता
जागे – अभागे
रोने को धोने को
लूँगी – दूँगी
त्यागे – अभागे
रानी – मानी
कहानी – पानी

4. इन शब्दों से वाक्य बनाइए :
भाग्य, नयन, पानी, प्रभु, संसार
उत्तर:
भाग्य – भाग्य में जो लिखा है, उसको भोगना पड़ेगा।
नयन – शरीर में नयन एक अमूल्य रत्न है।
पानी- बिशुद्ध पानी पीना चाहिए।
प्रभु – हे प्रभु! मेरी रक्षा करो।
संसार – संसार में कोई कार्य असम्भव नहीं है।

गृह कार्य :

1. आप की माँ रोते बच्चे को कैसे चुप कराती हैं? लिखिए।
उत्तर:
बच्चो घर की अनुभूति देखकर लिखिए।

2. गुप्त जी की दूसरी कविताओं को पढ़िए।
उत्तर:
बच्चो इस कविताओं को पढ़िए और याद रखना चाहिए।
जयभारत, भारत-भारती, यशोधरा, पंचवटी, साकेत आदि।

अति संक्षिप्त उत्तरमूलक प्रश्नोत्तर

A. निम्नलिखित प्रश्नों के उत्तर एक वाक्य में दीजिए।

प्रश्न 1.
‘राहुल – जननी’ कविता के कवि का नाम क्या है?
उत्तर:
‘राहुल- जननी’ कविता के कवि का नाम मैथिली शरण गुप्त है।

प्रश्न 2.
कवि गुप्तजी को पैतृक देन के रूप में क्या मिला था?
उत्तर:
राम – भक्ति कवि गुप्तजी को पैतृक देन के रूप में मिला था।

प्रश्न 3.
गुप्तजी कौन से युग के कवि माने जाते हैं?
उत्तर:
गुप्तजी द्विवेदी युग के कवि माने जाते हैं।

प्रश्न 4.
कवि मैथिली शरण गुप्त की रचनाओं में क्या देखने को मिलती है?
उत्तर:
कवि मौथिली शरण गुप्त की रचनाओं में राष्ट्रीय भावनाओं की अभिव्यक्ति देखने को मिलती है।

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 5.
गुप्तजी ने अपनी रचनाओं के जरिए क्या संदेश दिया?
उत्तर:
गुप्तजी ने अपनी रचनाओं के जरिए जनता को अंहिसा, सत्याग्रह, राष्ट्रप्रेम तथा मानवतावाद का संदेश दिया।

प्रश्न 6.
‘राहुल – जननी’ कविता में कवि ने यशोधरा के कौन-कौन से रूप का उद्घाटन किया है?
उत्तर:
‘राहुल- जननी’ कविता में कवि ने यशोधरा के माता और पत्नी रूप का उद्घाटन किया है।

प्रश्न 7.
यशोधरा किसे अभागा कहती है?
उत्तर:
यशोधरा अपने पुत्र राहुल को अभागा कहती है।

प्रश्न 8.
यशोधरा को कौन छोड़कर चले जाते हैं?
उत्तर:
यशोधरा को उनके पति छोड़ कर चले जाते हैं।

प्रश्न 9.
‘नयन – नीर ही उनको दूंगी’ – यह उक्ति किसने किसके लिए कहा है?
उत्तर:
‘नयन-नीर ही उनको दूँगी यह उक्ति यशोधरा ने अपने पति के लिए कहा है।

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 10.
‘राहुल जननी’ कविता कवि के किस खण्ड-काव्य से लिया गया है?
उत्तर:
‘राहुल जननी’ कविता कवि के ‘यशोधरा’ खण्ड-काव्य से लिया गया है।

प्रश्न 11.
राहुल सुबह जागने के बाद क्या करता है?
उत्तर:
राहुल सुबह जागने के बाद अपने पिता को न देख तथा माता के दुःख देखकर रोने लगता है।

प्रश्न 12.
कौन अपने आपको दासी से भी पराधीन मानती है?
उत्तर:
यशोधरा अपने आपको दासी से भी पराधीन मानती है।

प्रश्न 13.
यशोधरा क्या धोने की बात करती है?
उत्तर:
यशोधरा अपने पुत्र राहुल का मल धोने की बात करती है।

प्रश्न 14.
नारी जीवन की वास्तविकता क्या है?
उत्तर:
आँख में आँसू भरकर भी दूसरों के लिए कर्त्तव्य का संपादन करते रहना नारी जीवन की वास्तविकता है।

प्रश्न 15.
अबला जीवन की क्या कहानी है?
उत्तर:
‘आँचल में दूध और आँखों में पानी’ यही अबला जीवन की कहानी है।

B. निम्नलिखित प्रश्नों के उत्तर एक शब्द में दीजिए।

प्रश्न 1.
‘दानी – प्रभु’ किसके लिए कहा गया है?
उत्तर:
गोतम

प्रश्न 2.
यह कविता ‘राहुल – जननी’ किसने लिखी है?
उत्तर:
मैथिलीशरण गुप्त

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 3.
यशोधरा क्या धोने की बात कहती है?
उत्तर:
सारे मल

प्रश्न 4.
यशोधरा को कौन छोड़कर चला गया है?
उत्तर:
गौतम

प्रश्न 5.
किसकी दुःख भरी कहानी यहाँ वर्णित है?
उत्तर:
अबला

प्रश्न 6.
यशोधरा किसे खोने की बात कहती हैं?
उत्तर:
गौतम

प्रश्न 7.
यशोधरा का क्या लौट आएगा?
उत्तर:
भाग्य

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 8.
गौतम किसे छोड़कर चले जाते हैं?
उत्तर:
पत्नी-पुत्र

प्रश्न 9.
कौन सुबह जागने के बाद सोने लगता है?
उत्तर:
राहुल

प्रश्न 10.
‘नयन – नीर’ का अर्थ क्या है?
उत्तर:
आँसू (दु:ख)

प्रश्न 11.
नेपाल राजकुमार कौन है?
उत्तर:
गौतम

प्रश्न 12.
यशोधरा किसे अभागा कहती है?
उत्तर:
राहुल

C. रिक्तस्थानों को भरिए।

प्रश्न 1.
मेरा ……………. वह, दूध पिये, परिपुष्ट हो।
उत्तर:
शिशु-संसार

प्रश्न 2.
राहुल सुबह जागने के वाद ………………… करता है।
उत्तर:
रोने लगता

प्रश्न 3.
सोकर हम ……………….. ही जागे।
उत्तर:
खोकर

प्रश्न 4.
नारी जीवन की वास्तविकता है ………………..
उत्तर:
दूसरों के लिए कर्त्तव्य का संपादन करना

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 5.
‘मैं तो हूँ रोने को।’ यहाँ ‘मैं’ ……………… के लिए प्रयुक्त हुआ है।
उत्तर:
यशोधरा के लिए

प्रश्न 6.

‘”नयन-नीर ही उनकी दूँगी’ – यहाँ नयन-नीर ………………… देने की बात कि गयि है।
उत्तर:
गौतम को

प्रश्न 7.
जो आज अपने आप को नौकरानी मानती है वह पहले ……………….. थी।
उत्तर:
रानी

प्रश्न 8.
यशोधरा राहुल की …………….. लगती है।
उत्तर:
माता

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 9.
यशोधरा के अनुसार राहुल ………………..।
उत्तर:
अभागा

प्रश्न 10.
‘नयन-नीर ही उनकी दूँगी’ – यहाँ ‘नयन-नीर’ का अर्थ ………………… है।
उत्तर:
आँसू

प्रश्न 11.
पहले …………….. रानी थी जो अब दासी बन गई।
उत्तर:
यशोधरा

प्रश्न 12.
यशोधरा ने दानी प्रभु ……………… से संबोधित किया है।
उत्तर:
गौतम

प्रश्न 13.
“राहुल-जननी”‘ कविता के कवि ………………….. है।
उत्तर:
मैथिलीशरण गुप्त

प्रश्न 14.
‘राहुल-जननी’ कविता में यशोधरा के ……………………. से रूप को वर्णन किया गया है।
उत्तर:
माता और पत्नी

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

प्रश्न 15.
यशोधरा ………………… से अभागा कहती है।
उत्तर:
राहुल

प्रश्न 16.
गुप्तजी ………………….. से युग के कवि है।
उत्तर:
द्विवेदी-युग

प्रश्न 17.
‘राहुल जननी’ कविता …………………… खण्ड-काव्य का अंश है।
उत्तर:
यशोधरा

प्रश्न 18.
‘आँचल में दूध और आँखो में पानी’-यह …………………. की जीवन की कहानी है।
उत्तर:
दुर्वला नारी

D. सही उत्तर चुनिए।

1. ‘नयन-नीर’ ही उनको दूँगी – यहाँ यशोधरा नयननीर किसे देने की बात करती है?
(A) अपने पति गौतम को
(B) अपने पड़ोसी को
(C) राहुल को
(D) राजा को
उत्तर:
(A) अपने पति गौतम को

2. ‘नयन-नीर’ का अर्थ क्या है ?
(A) खुशी के आसू
(B) दु:ख के आँसू
(C) गम के आँसू
(D) आंखों का पानी
उत्तर:
(B) दु:ख के आँसू

3. ‘दानी प्रभु’ किसके लिए प्रयोग किया गया है?
(A) गौतम
(B) राहुल
(C) बेटी
(D) राम
उत्तर:
(A) गौतम

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

4. यशोधरा को कौन छोड़कर चले जाते हैं?
(A) अपने बेटा
(B) अपनी बेटी
(C) अपने पति गौतम बुद्ध
(D) इनमें से कोई भी नहीं
उत्तर:
(C) अपने पति गौतम बुद्ध

5. मै तो हूँ रोने को-यहाँ में किसके लिए प्रयुक्त हुआ है?
(A) जननी
(B) यशोधरा
(C) माता
(D) राहुल
उत्तर:
(B) यशोधरा

6. यशेधरा किसे अभागा कहती है?
(A) अपनी बेटी को
(B) अपने पुत्र राहुल को
(C) अपने पड़ोसी को
(D) अपने दोस्त को
उत्तर:
(B) अपने पुत्र राहुल को

7. मैथिली शरण गुप्त किस युग के प्रतिनिधि कवि माने जाते हैं?
(A) रीति युग के
(B) द्विवेदी-युग के
(C) बैदिक युग के
(D) पुराने युग के
उत्तर:
(B) द्विवेदी-युग के

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

8. मैथिली शरण गुप्त ने कौन-सी उम्र में काव्य-रचना शुरु की थी?
(A) 9 वर्ष में
(B) बचपन में
(C) 10 वर्ष में
(D) 8 वर्ष में
उत्तर:
(B) बचपन में

9. मैथिली शरण गुप्त जी को किस सम्मान से सम्मानित किया गया?
(A) राष्ट्रकवि
(B) गीतगोविन्द
(C) सारलादास
(D) राष्ट्रपिता
उत्तर:
(A) राष्ट्रकवि

10. आगरा विश्वविद्यालय तथा काशी हिन्दु विश्वविद्यालय में उन्हें कौन-सी उपाधि दी?
(A) डँक्टर
(B) डी. लिट
(C) अध्यापक
(D) इनमें से कोई भी नहीं
उत्तर:
(B) डी. लिट

11. वे भारत के राष्ट्रपति के द्वारा मनोनीत होकर कहाँ रहे?
(A) लोकसभा सासद
(B) राज्यसभा सांसद
(C) विधानसभा सांसद
(D) भारत के सांसद
उत्तर:
(B) राज्यसभा सांसद

12. उनका निधन कब हुआ था?
(A) 1964 ई
(B) 1965 ई
(C) 1966 ई
(D) 1967 ई
उत्तर:
(A) 1964 ई

दोहे (ତେ।ହେ)

चुप रह, चुप रह, हाय, अभागे!
रोता है अब, किसके आगे?
तुझे देख पाता वे रोता,
मुझे छोड़ जाते क्यों सोता?
अब क्या होगा?
तव कुछ होता,
सोकर हम खोकर ही जागे!
चुप रह, चुप रह, हाय अभागे!
ଚୁପ୍ ରହ, ଚୁପ୍ ରହ, ହାୟ, ଅଭାଗେ !
ରୋତା ହୈ ଅବ୍, କିସ୍‌ ଆଗେ ?
ତୁଝେ ଦେଖ୍ ପାତା ୱେ ରୋତା,
ମୁଝେ ଛୋଡ଼୍ ଜାତେ କୈ ସୋତା ?
ଅବ୍ କ୍ୟା ହୋଗା ? ତବ୍ କୁଛ୍ ହୋତା,
ସୋକର୍ ହମ୍ ଖୋକର୍ ହୀ ଜାଗେ !
ଚୁପ୍ ରହ, ଚୁପ୍ ରହ, ହାୟ ଅଭାଗେ !
ଅନୁବାଦ:
ଯଶୋଧରା ରାହୁଳକୁ ଚୁପ୍ ରହିବାକୁ କହୁଛନ୍ତି, ହେ ଅଭାଗା, ବର୍ତ୍ତମାନ କାହା ଆଗରେ କାନ୍ଦୁଛୁ । ତୋ ପିତା ଘର ଛାଡ଼ିଯିବା ସମୟରେ ଶୟନରେ ଥିଲୁ । ସେ ମୋତେ ଛାଡ଼ି ସଂସାର ତ୍ୟାଗ କାହିଁକି କରିଛନ୍ତି ? ବର୍ତ୍ତମାନ କ’ଣ ହେବ ? ହେ ହତଭାଗା, ସେତେବେଳେ ଆମ୍ଭେ.ଶୋଇଥିବାରୁ ସବୁ ହରାଇଛୁ ।

बेटा, मैं तो हूँ रोने को;
तेरे सारे मल धोने को;
हँस तु, है सब कुछ होने को,
भाग्य आयेड़े फिर भी भागे,
चुप रह, चुप रह, हाय अभागे !
तुझको क्षीर पिलाकर लूँगी,
नयन-नीर ही उनको दूँगी,
पर क्या पक्षपातिनी हूँगी?
मैंने अपने सब रस त्यागे।
चुप रह, चुप रह, हाय अभागे।
ବେଟା, ମେଁ ତୋ ହୂ ରୋନେ କୋ;
ତେରେ ସାରେ ମଲ୍ ଧୋନେ କୋ;
ହଁସ୍ ତୁ, ହୈ ସବ୍ କୁଛ୍ ହୋନେ କୋ,
ଭାଗ୍ୟ ଆୟେଙ୍ଗେ ଫିର୍ ଭୀ ଭାଗେ,
ଚୁପ୍ ରହ, ଚୁପ୍ ରହ, ହାୟ ଅଭାଗେ !
ତୁଝେ କ୍ଷୀର ପିଲାକର୍ ଗୀ, ନୟନ୍ “
ନୀର ହୀ ଉନକୋ ଦୂଗୀ, ପର୍ କ୍ୟା ପକ୍ଷପାତିନୀ ହୂଗୀ ?
ମୈନେ ଅପନେ ସବ୍ ରସ୍ ତ୍ୟାଗେ ।
ଚୁପ୍ ରହ, ଚୁପ୍ ରହ, ହାୟ୍ ଅଭାଗେ ।
ଅନୁବାଦ:
ଯଶୋଧରା ପୁତ୍ର ରାହୁଳକୁ କହୁଛନ୍ତି, ମୋ ଭାଗ୍ୟରେ କାନ୍ଦିବା ଲେଖାଅଛି । ମୁଁ କାନ୍ଦିବି, ତୋର ସମସ୍ତ କଷ୍ଟକୁ ଲାଘବ କରିବି । ଭାଗ୍ୟ ଆସିବ ପୁଣି ମଧ୍ଯ ଫେରିଯିବ । ହେ ନିଧନ ସଙ୍ଖାଳି ମୁଁ ତତେ ସମସ୍ତ ସ୍ନେହ ମମତା ଦେଇ ପାଳିବି । ସ୍ନେହ ମମତାରେ କେବେହେଲେ ପକ୍ଷପାତୀ ହେବ ନାହିଁ । ଯଶୋଧରା କହୁଛନ୍ତି, ସମସ୍ତ ସୁଖ ତ୍ୟାଗ କରି ପତିବ୍ରତା ନାରୀର କର୍ତ୍ତବ୍ୟ ପାଳନ କରିବି ।

BSE Odisha 9th Class Hindi Solutions Poem 3 राहुल जननी

चेरी भी वह आज कहाँ, कल भी जो रानी,
दानी प्रभु ने दिया उसे क्यों मन यह मानी?
अबला-जीवन, हाय ! तुम्हारी यही कहानी
आअल में है दूध और आखों में पानी!
ଚେରୀ ଭୀ ୱହ ଆଜ୍ କର୍ହା, କଲ୍ ଭୀ ଜୋ ରାନୀ,
ଦାନୀ ପ୍ରଭୁ ନେ ଦିୟା ଉସେ ଜ୍ୟୋ ମନ୍ ୟହ ମାନୀ ?
ଅବଲା-ଜୀବନ, ହାୟ ! ତୁମ୍‌ହାରୀ ୟହୀ କହାନୀ
ଆଞ୍ଚଲ୍ ମେଁ ହୈ ଦୁଧ ଔର୍ ଆଖେଁ ମେଁ ପାନୀ !
ଅନୁବାଦ:
ଯିଏ କାଲି ରାଜମହଲର ରାଣୀ ଥିଲା, ସେ ଆଜି ଦାସୀଠାରୁ ପରାଧୀନ ହୋଇଛି । ନାରୀ ଜୀବନର ବାସ୍ତବିକତା ହେଉଛି ନିଜେ ଦୁଃଖ କଷ୍ଟ ସହି ଅନ୍ୟ ପାଇଁ କର୍ତ୍ତବ୍ୟ ସମ୍ପାଦନ କରିବା।

मेरा शिशु-संसार वह
दूध पिये, परिपुष्ट हो।
पानी के ही पात्र तुम प्रभो,
रुष्ट या तुष्ट हो।
ମେରା ଶିଶୁ-ସଂସାର ୱହ୍
ଦୂଧ ପିୟେ, ପରିପୁଷ୍ଟ ହୋ।
ପାନୀ କେ ହୀ ପାତ୍ର ତୁମ୍
ପ୍ରଭୋ ରୁଷ୍ଟ ୟା ତୁଷ୍ଟ ହୋ।
ଅନୁବାଦ:
ଯଶୋଧରା କହୁଛନ୍ତି, ହେ ଶିଶୁ ସଂସାର ରାହୁଳ, କ୍ଷୀର ପାନ କରି ସୁସ୍ଥସବଳ ହୁଅ । ହେ ପ୍ରଭୁ (ପତିଦେବ) ତୁମେ ଅଶ୍ରୁର ପାତ୍ର, ତୁମେ ସନ୍ତୁଷ୍ଟ ହୁଅ ବା ଅସନ୍ତୁଷ୍ଟ ହୁଅ ।

शबनार: (ଶରାର୍ଥି)

अभागे – भाग्यहीन (ଭ।ଗମହାନ / ହତଭାଗା)।

मल धोने – दुध (ଦୁଃଖ ଲ।ଘବ କରିବା ପାଇଁ)।

क्षीर – आँसू (ଦୁଟ୍ଧ)।

नयन – नीर (ଅଶ୍ଵା / ଲୋତକ )।

पक्षपातिनी – किसी एक का समर्थन करनेवाली (କୌଶସି ଜଣକୁ ସମର୍ଥିନ କରୁଥ୍ବା ବୀ।କ୍ତି)।

रस-सुख – आराम (ଆରାମ)।

चेरी – नौकरानी, दासी (ଚାକରାଣୀ ଦ।ସ।)।

अबला – कमजोर या दुर्बल स्री (ଦୁର୍ବଳି ସ୍ତ୍ରୀ)।

परिपुष्ट – हृष्टपुष्ट(ସ୍ମସ୍ଥିସବଳ)।

रुष्ट – नाराज (ରାଜିନ ହେବା)।

तुष्ट – खुश, सन्तुष्ट (ଖୁସି/ସ ନ୍ତୁଷ୍ଟ)।

कवि परिचय (କବି ପରିଚୟ)।

मैथिली शरण गुप्त का जन्म सन् 1886 ई. में झाँसी के चिरगाँव में हुआ था। उनके पिता सेठ रामचरणजी वैष्णव भक्त एवं अच्छे कवि थे। इसलिए राम – भक्ति गुप्तजी को पैतृक देन के रूप में मिली। बचपन से ही वे काव्य-रचना करने लगे। वे द्विवेदी युग के प्रतिनिधि कवि माने जाते हैं। वे गांधीवादी और भक्त कवि हैं। उनकी रचनाओं में राष्ट्रीय भावनाओं की अभिव्यक्ति मिलती है। अपनी रचनाओं के जरिये उन्होंने जनता को अहिंसा, सत्याग्रह, राष्ट्र-प्रेम तथा मानवतावाद का संदेश दिया।

इसलिए उन्हें ‘राष्ट्रकवि’ सम्मान से सम्मानित किया गया। आगरा विश्वविद्यालय तथा काशी हिन्दू विश्वविद्यालय ने उन्हें डी. लिट. की मानद उपाधि प्रदान की। वे भारत के राष्ट्रपति के द्वारा मनोनीत राज्यसभा सांसद भी रहे। उनका निधन सन् 1964 ई. में हुआ। उनकी प्रमुख काव्य-रचनाएँ ये है : जयद्रथ वध, भारत-भारती, पंचवटी, साकेत, यशोधरा, द्वापर, जयभारत, विष्णुप्रिया आदि।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

Odisha State Board BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ Textbook Exercise Questions and Answers.

BSE Odisha Class 10 Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

Question 1.
ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ଆଭ୍ୟନ୍ତରୀଣ ଗଠନ ବୁଝାଅ ।
ଊ-

  1. ହୃତପିଣ୍ଡ ଚାରି ପ୍ରକୋଷ୍ଠବିଶିଷ୍ଟ । ଉପର ଦୁଇ ପ୍ରକୋଷ୍ଠକୁ ଏଟ୍ରିୟମ୍ ବା ଅଳିନ୍ଦ ଓ ତଳ ଦୁଇ ପ୍ରକୋଷ୍ଠକୁ ଭେଣ୍ଡ୍ରିକଲ୍ ବା ନିଳୟ କୁହାଯାଏ ।
  2. ଦକ୍ଷିଣ ଅଳିନ୍ଦ ସହ ଉର୍ଦ୍ଧ୍ବ ମହାଶିରା ଓ ନିମ୍ନ ମହାଶିରା ନାମକ ଦୁଇଟି ରକ୍ତବାହିନୀ ଏବଂ ଦକ୍ଷିଣ ନିଳୟ ସହିତ ଫୁସ୍‌ଫୁସ୍ ଧମନୀ ସଂଯୁକ୍ତ । ହୃତ୍‌ପିଣ୍ଡର ବାମ ଅଳିନ୍ଦ ସହ ଫୁସ୍‌ଫୁସ୍ ଶିରା (Pulmonary vein) ଓ ବାମ ନିଳୟସହ ମହାଧମନୀ (Aorta) ସଂଯୁକ୍ତ ।
  3. ଅଳିନ୍ଦ-ନିଳୟ ଦ୍ଵାରରେ ଏବଂ ନିଳୟ-ରକ୍ତବାହିନୀ ଦ୍ଵାରରେ ରହିଥ‌ିବା 2 ବା 3ଟି ପତଳା ପରଦାକୁ କପାଟିକା (Valve) କୁହାଯାଏ । କପାଟିକାର ପ୍ରତ୍ୟେକ ପରଦାକୁ ପାଖୁଡ଼ା (Cusp) କୁହାଯାଏ ।
  4. ଦକ୍ଷିଣ ଅଳିନ୍ଦ-ଦକ୍ଷିଣ ନିଳୟ ଦ୍ବାରରେ ଓ ପାଖୁଡ଼ାବିଶିଷ୍ଟ କପାଟିକା (Tricuspid valve), ବାମ ଅଳିନ୍ଦ- ବାମ ନିଳୟ ଦ୍ବାରରେ 2 ପାଖୁଡ଼ାବିଶିଷ୍ଟ କପାଟିକା (Bicuspid valve) ଓ ନିଳୟ ରକ୍ତବାହିନୀ ଦ୍ଵାରରେ ଅର୍ଦ୍ଧଚନ୍ଦ୍ରାକୃତି କପାଟିକା (Semilunar valve) ରହିଥାଏ । ହୃତପିଣ୍ଡର 4ଟି ପ୍ରକୋଷ୍ଠ ମଧ୍ୟରୁ ବାମ ନିଳୟ ଅଧିକ ଦକ୍ଷ ଓ ଏହାର ପ୍ରାଚୀର ଅଧିକ ମୋଟା । କାରଣ ବାମ ନିଳୟର ସଙ୍କୋଚନ ହେଲେ ଅମ୍ଳଜାନଯୁକ୍ତ ରକ୍ତ ମହାଧମନୀ ଦେଇ ଶରୀରର ବିଭିନ୍ନ ଅଂଶକୁ ଯାଇଥାଏ ।
  5. ଅଳିନ୍ଦ ଓ ନିଳୟ ମଧ୍ୟସ୍ଥ କପାଟିକା ନିଳୟ ଆଡ଼କୁ ଏବଂ ନିଳୟ ଓ ରକ୍ତବାହିନୀ ମଧ୍ୟସ୍ଥ କପାଟିକା ରକ୍ତବାହିନୀ ଆଡ଼କୁ ଖୋଲୁଥିବାରୁ ରକ୍ତ କେବଳ ଗୋଟିଏ ଦିଗରେ ପ୍ରବାହିତ ହୋଇଥାଏ । କପାଟିକା ବନ୍ଦ ହୋଇଗଲେ ରକ୍ତ ସେହିବାଟେ ପଛକୁ ଫେରିପାରେ ନାହିଁ ।

Question 2.
ରକ୍ତବାହିନୀ କ’ଣ ? ଶିରା ଓ ଧମନୀ ମଧ୍ୟରେ ପାର୍ଥକ୍ୟ ଉଲ୍ଲେଖ କର ।
ଊ-

  1. ଶରୀରରେ ରକ୍ତ ସଞ୍ଚାଳନ ପାଇଁ ରହିଛି କିଛି ନଳୀ । ଏହି ନଳୀମାନଙ୍କୁ ରକ୍ତବାହିନୀ (Blood Vessels) କୁହାଯାଏ । ଏହି ନଳୀଗୁଡ଼ିକ ଶରୀର ପରିବହନ ସଂସ୍ଥାର ଏକମୁହାଁ ରାସ୍ତା ପରି ।
  2. ଆମ ଦେହସାରା ପ୍ରାୟ 96,000ରୁ 1,60,000 କିଲୋମିଟର ଲମ୍ବ ନଳୀ ବିଛେଇ ହୋଇ ରହିଛି ।
  3. ରକ୍ତବାହିନୀ ପ୍ରଧାନତଃ ତିନି ପ୍ରକାରର; ଯଥା – ଧମନୀ (Artery), ଶିରା (Vein) ଓ ରକ୍ତକୈଶିକ (Capillary) ।
  4. ଶିରା ଓ ଧମନୀ ମଧ୍ୟରେ ପାର୍ଥକ୍ୟ

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

ଣିରା:

  • ଏହା ଶରୀରର ବିଭିନ୍ନ ଅଂଶରୁ ହୃତ୍‌ପିଣ୍ଡକୁ ରକ୍ତ ବହନ କରିଥାଏ ।
  • ଏହା ଅମ୍ଳଜାନବିହୀନ ରକ୍ତ ବହନ କରେ ।
  • ଏହାର ଭିଭି ପତଳା ଓ କମ୍ ପ୍ରସାରଣଶୀଳ ।
  • ଏଥରେ ରକ୍ତ ନିମ୍ନ ଚାପରେ ଧୀର ଗତିରେ ପ୍ରବାହିତ ହୁଏ ।
  • ଏଥରେ କପାଟିକା ଥାଏ ।
  • ଏହାର ଅବସ୍ଥିତି ସହଜରେ ଜାଣିହୁଏ ।

ଧମନ।:

  • ଏହା ହୃତ୍‌ପିଣ୍ଡରୁ ଶରୀରର ବିଭିନ୍ନ ଅଂଶକୁ ରକ୍ତ ବହନ କରିଥାଏ ।
  • ଏହା ଅମ୍ଳଜାନଯୁକ୍ତ ରକ୍ତ ବହନ କରେ ।
  • ଏହାର ଭିଭି ମୋଟା ଓ ଅଧିକ ପ୍ରସାରଣଶୀଳ ।
  • ଏଥିରେ ରକ୍ତ ଉଚ୍ଚ ଚାପରେ ଦ୍ରୁତ ଗତିରେ ପ୍ରବାହିତ ହୁଏ ।
  • ଏଥରେ କପାଟିକା ନଥାଏ ।
  • ଏହା ଶରୀର ମଧ୍ୟରେ ଗଭୀରକୁ ଥାଏ ।

Question 3.
ରକ୍ତ କିପରି ଜମାଟ ବାନ୍ଧେ ବୁଝାଅ ।
ଉ-

  • ଶରୀରର କୌଣସି ସ୍ଥାନ କଟିଗଲେ ବା କ୍ଷତ ହୋଇଗଲେ ସେ ସ୍ଥାନରୁ ରକ୍ତ ବାହାରେ । କିଛି ସମୟ ଉତ୍ତାରୁ ସେ ସ୍ଥାନରେ ରକ୍ତ ଜମାଟ ବାନ୍ଧେ ଓ ରକ୍ତସ୍ରାବ ବନ୍ଦ ହୁଏ । ପ୍ଲାଜ୍‌ମାରେ ଥିବା ବିଭିନ୍ନ ପ୍ରୋଟିନ୍ ରକ୍ତଜମାଟ ବାନ୍ଧିବା କାର୍ଯ୍ୟଟି କରିଥାନ୍ତି ।
  • କ୍ଷତ ହୋଇ ରକ୍ତ ବାହାରିଲେ କ୍ଷତ ଟିସୁ ଓ ଭାଙ୍ଗିଯାଇଥିବା ଅଣୁଚକ୍ରିକା ବାୟୁର ସଂସ୍ପର୍ଶରେ ଆସିବା ଫଳରେ କ୍ଷତସ୍ଥାନରେ ଥ୍ରୋୟୋପ୍ଲାଷ୍ଟିନ୍‌ ନାମକ ଏକ ଲିପୋପ୍ରୋଟିନ୍ ସୃଷ୍ଟି ହୁଏ ।
  • ଏହା ରକ୍ତରେ ଥିବା କ୍ୟାଲସିୟମ୍ ଆୟନ (Catt) ତଥା ଏନ୍‌ଜାଇମ୍ ଉପସ୍ଥିତିରେ ପ୍ଲାଜମାରେ ଥ‌ିବା ପ୍ରୋଟିନ୍‌ ପ୍ରୋଥ ନ୍‌କୁ ଥୁମ୍ବିନ୍ ନାମକ ଏକ ସକ୍ରିୟ ଏନ୍‌ଜାଇମ୍‌ରେ ପରିଣତ କରାଏ ।
  • ଥୁମ୍ବିନ୍ ପ୍ରଭାବରେ ଫାଇଟ୍ରିନୋଜେନ୍ ନାମକ ଅନ୍ୟ ଏକ ପ୍ଲାଜମା-ପ୍ରୋଟିନ୍ ଫାଇବ୍ରିନ୍‌ରେ ପରିଣତ ହୁଏ ।
  • ଦ୍ରବଣୀୟ ଓ ତନ୍ତୁପରି ଥବା ଏହି ପ୍ରୋଟିନ୍ କ୍ଷତ ସ୍ଥାନରେ ଠୁଳ ହୋଇ ସେଠାରେ ଏକ ସୂକ୍ଷ୍ମ ଜାଲ ତିଆରି କରେ ।
  • ଏହି ଜାଲରେ ରକ୍ତକଣିକା ଓ ଅଣୁଚକ୍ରିକା ଛନ୍ଦି ହେବାଦ୍ଵାରା ଖଣ୍ଡିଆ ସ୍ଥାନ ଉପରେ ଏକ ପତଳା ଆସ୍ତରଣ ତିଆରି ହୁଏ । ଫଳରେ କ୍ଷତରୁ ରକ୍ତ ବାହାରି ପାରେନାହିଁ ଏବଂ ରକ୍ତସ୍ରାବ ବନ୍ଦ ହୋଇଯାଏ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

ସଂକ୍ଷେପରେ ରକ୍ତ ଜମାଟ ବାନ୍ଧିବା ପ୍ରକ୍ରିୟା :
କ୍ଷତ ଟିସୁ ଓ କୋଷ ତଥା ଭାଙ୍ଗିଥ‌ିବା ଅଣୁଚକ୍ରିକାରୁ ଜାତ ଥ୍ରୋୟୋପ୍ଲାଷ୍ଟିନ୍ ଉପସ୍ଥିତିରେ
BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ - 1
(ଗ) ଫାଇବ୍ରୋନ୍ ଜାଲ ଓ ରକ୍ତକଣିକା ଏବଂ ଅଣୁଚକ୍ରିକା →ପତଳା ଆସ୍ତରଣ ସୃଷ୍ଟି ଓ ରକ୍ତସ୍ରାବ ବନ୍ଦ

Question 4.
ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ଅବସ୍ଥିତି ଓ ବାହ୍ୟ ଗଠନ ବର୍ଣ୍ଣନା କର ।
ଉ-
ଅବସ୍ଥିତି :

  • ମନୁଷ୍ୟ ଶରୀରରେ ବକ୍ଷଗହ୍ଵର ମଧ୍ୟସ୍ଥଳରେ, ଦୁଇ ଫୁସ୍‌ଫୁସ୍ ମଝିରେ ଓ ମଧ୍ୟଚ୍ଛଦାର ଉପରେ ସାମାନ୍ୟ ବାମକୁ ହୃତ୍‌ପିଣ୍ଡ ଅବସ୍ଥିତ ।
    ବାହ୍ୟଗଠନ :
  • ଜଣେ ବୟଃପ୍ରାପ୍ତ ବ୍ୟକ୍ତିର ହୃତ୍‌ପିଣ୍ଡର ଲମ୍ବ ପ୍ରାୟ 12 ସେ.ମି., ଓସାର ପ୍ରାୟ 9 ସେ.ମି. ଓ ଓଜନ ପ୍ରାୟ 250ରୁ 300 ଗ୍ରାମ୍ । ଏହାର ରଙ୍ଗ ମାଟିଆ ଲାଲ ।
  • ହୃତ୍‌ପିଣ୍ଡରେ ଚାରୋଟି ପ୍ରକୋଷ୍ଠ ରହିଛି । ଉପର ଦୁଇ ପ୍ରକୋଷ୍ଠକୁ ଏଟ୍ରିୟମ୍ ବା ଅଳିନ୍ଦ (ଦକ୍ଷିଣ ଓ ବାମ ଅଳିନ୍ଦ) ଓ ତଳ ଦୁଇ ପ୍ରକୋଷ୍ଠକୁ ଭେଣ୍ଡିକଲ୍ ବା ନିଳୟ (ଦକ୍ଷିଣ ବା ବାମ ନିଳୟ) କୁହାଯାଏ ।
  • ଦକ୍ଷିଣ ଅଳିନ୍ଦ ସହ ଊର୍ଦ୍ଧ୍ବ ମହାଶିରା ଓ ନିମ୍ନ ମହାଶିରା ନାମକ ଦୁଇଟି ବୃହତ୍ ରକ୍ତବାହିନୀ ଏବଂ ଦକ୍ଷିଣ ନିଜୟ ସହିତ ଫୁସ୍‌ଫୁସ୍‌ ଧମନୀ ସଂଯୁକ୍ତ ହୋଇଥାଏ ।
  • ବାମ ଅଳିନ୍ଦ ସହ ଫୁସ୍‌ଫୁସ୍ ଶିରା ଓ ବାମ ନିଳୟ ସହ ମହାଧମନୀ ସଂଯୁକ୍ତ ହୋଇଥାଏ ।

Question 5.
ଉଦ୍ଭିଦରେ ଜଳର ପରିବହନରେ ସମ୍ପୃକ୍ତ ତତ୍ତ୍ଵଗୁଡ଼ିକୁ ବୁଝାଅ ।
ଉ-
ଉଦ୍ଭଦରେ ପୋଷକ ପରିବହନ ପାଇଁ ତିନୋଟି ତତ୍ତ୍ଵର ଅବତାରଣା କରାଯାଇଛି, ଯଥା-
(କ) କୈଶିକ ଆକର୍ଷଣ
(ଖ) ମୂଳଜ ଚାପ
(ଗ) ସଂସକ୍ତି ତତ୍ତ୍ଵ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

ମୂଳଜ ଚାପ :

  • କୌଣସି ଏକ ଉଦ୍ଭଦର କାଣ୍ଡକୁ ଅଧାରୁ କାଟିଦେଲେ, କ୍ଷତ ସ୍ଥାନରୁ ଜଳୀୟ ପଦାର୍ଥ ବାହାରିଥାଏ ।
  • ଏହା ମୂଳଜ ଚାପ ଯୋଗୁଁ ହୋଇଥାଏ ବୋଲି ବିଶ୍ଵାସ କରାଯାଏ ।
  • ଗଛର କଟା ଅଂଶରେ ଯଦି ଗୋଟିଏ ମାନୋମିଟର ଖଞ୍ଜି ଦିଆଯାଏ, ତେବେ ମୂଳରୁ ଯେଉଁ ଚାପ ସୃଷ୍ଟି ହୁଏ (ମୂଳଜ ଚାପ), ତାହାକୁ ମପାଯାଇପାରେ ।
  • ଜଳର ଊର୍ଦ୍ଧ୍ଵ ପରିବହନ ପାଇଁ ଉଚ୍ଚ ଗଛଗୁଡ଼ିକରେ ମୂଳଜ ଚାପ ଅଧ‌ିକ ହେବା କଥା । କିନ୍ତୁ ତାହା ହୁଏନାହିଁ ।
  • ଉସ୍ବେଦନର ବେଗ ସର୍ବାଧିକ ହେଲେ ଜଳ ସର୍ବାଧ‌ିକ ଉଚ୍ଚ ଉଠିଯାଏ; ମାତ୍ର ସେତେବେଳେ ମୂଳକ ଚାପ ସର୍ବନିମ୍ନ ଥ‌ିବା ଦେଖାଯାଏ । ତେଣୁ ଜଳ ପରିବହନରେ ମୂଳଜ ଚାପର ବିଶେଷ ଭୂମିକା ନାହିଁ ।

ସଂସକ୍ତି ବଳ ଓ ସଂଲଗ୍ନ ବଳ :

  • ଜଳର ଶୋଷଣ ମୁଖ୍ୟତଃ ଉଦନ ପ୍ରକ୍ରିୟାଦ୍ବାରା ସଙ୍ଗଠିତ ହୋଇଥାଏ । ଏହି ପ୍ରକ୍ରିୟା ହେତୁ ପତ୍ରରୁ ବହୁ ପରିମାଣର ଜଳ କ୍ଷୟ ହୁଏ ।
  • ଜଳକ୍ଷୟ ଯୋଗୁଁ ପତ୍ରଫଳକରେ ଜଳର ବିସରଣ ଚାପ କମିଯାଏ । ତେଣୁ ପତ୍ରର ଶିରାପ୍ରଶିରାରୁ ଜଳ ପତ୍ର ଫଳକ ମଧ୍ୟକୁ ଗତିକରେ ।
  • ଫଳରେ ଶିରାପ୍ରଶିରାରେ ଜଳର ବିସରଣ ଚାପ ମଧ୍ୟ କମିଯାଏ । ପତ୍ରଫଳକ ଓ ଶିରାପ୍ରଶିରାରେ ପୂର୍ବାବସ୍ଥା ଆଣିବାପାଇଁ ଜଳ, କାଣ୍ଡର ଜାଇଲେମ୍ ଟିସୁରୁ ପତ୍ରର ଶିରାପ୍ରଶିରାକୁ ଗତିକରେ ।
  • କାଣ୍ଡରେ ଥିବା ଜାଇଲେଟ୍‌ରେ ଜଳର ଧାରା ଅକ୍ଷୁଣ୍ଣ ରଖିବାପାଇଁ ଜଳ ମୂଳରୁ ଶୋଷିତ ହୋଇ କାଣ୍ଡ ପର୍ଯ୍ୟନ୍ତ ଆସେ ଅର୍ଥାତ୍ ପତ୍ରପୃଷ୍ଠରେ ଉଚ୍ଛେଦନଜନିତ ଆକର୍ଷଣ ଯୋଗୁଁ ମୂଳରୁ ପତ୍ର ପର୍ଯ୍ୟନ୍ତ ଜଳର ଏକ ନିରବଚ୍ଛିନ୍ନ ଧାରା ପ୍ରବାହିତ ହୁଏ ।
  • ଜଳର ଏହି ଧାରାକୁ ଉତ୍ସୁଦନ ସ୍ରୋତ କୁହାଯାଏ । ଏହି ଜଳଧାରା ଛିନ୍ନ ନ ହେବାର ଦୁଇଟି କାରଣ ହେଲା, ସଂସକ୍ତି ବଳ ଓ ସଂଲଗ୍ନ ବଳ ।

(a) ଅତି ସୂକ୍ଷ୍ମ ନଳୀ ଭିତରେ ଜଳ ଅଣୁମାନଙ୍କ ମଧ୍ୟରେ ସଂସକ୍ତି ବଳ ଯଥେଷ୍ଟ ଅଧିକ ଥାଏ ।
(b) ଜଳ ଓ ଜାଇଲେମ୍ ଭିଭି ମଧ୍ୟରେ ଥିବା ସଂଲଗ୍ନ ବଳ ଯୋଗୁଁ ଜଳ ସର୍ବଦା ଜାଇଲେମ୍ ଭିଭି ସହ ଲାଗି ରହେ । ତେଣୁ ମୂଳଜ ଚାପ ସଂଯୁକ୍ତ ବଳ ଓ ସଂଲଗ୍ନ ବଳର ପ୍ରଭାବରେ ଉଭିଦରେ ଜଳର ପରିବହନ ସମ୍ଭବ ହୋଇଥାଏ ।

Question 6.
ଉଦ୍ଭିଦରେ ଜଳ ପରିବହନ ଦର୍ଶାଉଥ‌ିବା ଏକ ପରୀକ୍ଷଣ ବର୍ଣ୍ଣନା କର ।
ଉ-
ଉଭିଦରେ ଜଳର ପରିବହନ ଦର୍ଶାଇବାପାଇଁ ଏକ ପରୀକ୍ଷଣ :
ଆବଶ୍ୟକ ଉପକରଣ – କୋନିକାଲ୍ ଫ୍ଲସ୍କ, ନାଲି କାଳି ବା ସାଫ୍ରାନିନ୍ ରଙ୍ଗ, ଜଳ, ହରଗୌରା ଗଛ ।
ପରୀକ୍ଷଣ – ଗୋଟିଏ କୋନିକାଲ୍ ଫ୍ଲସ୍କରେ ଅଧା ପାଣି ନିଆଯାଉ । ସେଥ‌ିରେ ଦୁଇତିନି ବୁନ୍ଦା ନାଲି କାଳି ମିଶାଯାଉ । ପାଣିର ରଙ୍ଗ ଲାଲ ହୋଇଛି କି ନାହିଁ ଦେଖାଯାଉ । ଗୋଟିଏ ହରଗୌରା ଗଛକୁ ସାବଧାନରେ ମାଟିରୁ ଚେର ସହ ଉପାଡ଼ି ବାହାର କରାଯାଉ । ଏବେ ଚେରରୁ ମାଟି ଧୋଇ ଦିଆଯାଉ । କୋନିକାଲ୍ ଫ୍ଲସ୍କରେ ଗଛଟିକୁ ସିଧାକରି ଠିଆ କରାଯାଉ ଯେପରି ଚେର ନାଲି ପାଣିରେ ବୁଡ଼ି ରହିବ । ଏକ ଘଣ୍ଟା ପରେ ଲକ୍ଷ୍ୟ କରାଯାଉ ।
ପର୍ଯ୍ୟବେକ୍ଷଣ : ହରଗୌରା ଗଛର କାଣ୍ଡ ଓ ପତ୍ରର ଶିରା ପ୍ରଶିରା ନାଲି ହେବାର ଦେଖାଯିବ ।
ସିଦ୍ଧାନ୍ତ : କୋନିକାଲ୍ ଫ୍ଲସ୍କରେ ଥିବା ନାଲି ପାଣି ଚେରଦ୍ଵାରା ଶୋଷିତ ହୋଇ ଗଛର କାଣ୍ଡ ଓ ପତ୍ରର ଶିରା ମଧ୍ୟକୁ ପରିବାହିତ ହୋଇଥାଏ । ଏଥୁଁ ଜଣାଗଲା ଯେ ଉଭିଦରେ ଜଳର ପରିବହନ ହୋଇଥାଏ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

Question 7.
ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ଆଭ୍ୟନ୍ତରୀଣ ଗଠନର ନାମାଙ୍କିତ ଚିତ୍ର ଦିଅ ।
ଉ-
BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ - 2

Question 8.
ଟିପ୍ପଣୀ ଦିଅ ।
(କ) ଦ୍ଵୈତ ସଞ୍ଚାଳନ :
ଉ-
(i) ମନୁଷ୍ୟ ତଥା ଅନ୍ୟ ସ୍ତନ୍ୟପାୟୀ ଓ ପକ୍ଷୀମାନଙ୍କ ହୃତ୍‌ପିଣ୍ଡ ଚାରି ପ୍ରକୋଷ୍ଠବିଶିଷ୍ଟ ହୋଇଥ‌ିବାରୁ ଏମାନଙ୍କର ହୃତ୍‌ପିଣ୍ଡରେ ଅମ୍ଳଜାନଯୁକ୍ତ ରକ୍ତ ଓ ଅଙ୍ଗାରକାମ୍ଳ ବିହୀନ ରକ୍ତର ମିଶ୍ରଣ ହୁଏନାହିଁ ।
(ii) ବାମପଟର ଅଳିନ୍ଦ ଓ ନିଳୟ ମଧ୍ୟଦେଇ ଅମ୍ଳଜାନଯୁକ୍ତ ରକ୍ତ ପ୍ରବାହିତ ହେଉଥ‌ିବା ବେଳେ, ଅଳିନ୍ଦ ଓ ନିଳୟ ମଧ୍ୟଦେଇ ଅମ୍ଳଜାନବିହୀନ ରକ୍ତ ସଂଚାଳିତ ହୋଇଥାଏ ।
(iii) ଶରୀରର କୌଣସି ଅଙ୍ଗକୁ ଥରେ ରକ୍ତ ପହଞ୍ଚିଲାବେଳକୁ ତାହା ଦୁଇଥର ହୃତ୍‌ପିଣ୍ଡ ମଧ୍ୟଦେଇ ପ୍ରବାହିତ ହୋଇଥାଏ । ଏ ପ୍ରକାର ରକ୍ତ ସଞ୍ଚାଳନକୁ ଶ୍ବେତ ସଞ୍ଚାଳନ କୁହାଯାଏ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

(ଖ) ସଂସକ୍ତି ତତ୍ତ୍ବ :
ଉ-

  • ଜଳର ଶୋଷଣ ମୁଖ୍ୟତଃ ଉଵେଦନ ପ୍ରକ୍ରିୟାଦ୍ଵାରା ସଙ୍ଗଠିତ ହୋଇଥାଏ । ଏହି ପ୍ରକ୍ରିୟା ହେତୁ ପତ୍ରରୁ ବହୁ ପରିମାଣର ଜଳ କ୍ଷୟ ହୁଏ ।
  • ଜଳ କ୍ଷୟ ଯୋଗୁଁ ପତ୍ରଫଳକରେ ଜଳର ବିସରଣ ଚାପ କମିଯାଏ । ତେଣୁ ପତ୍ରର ଶିରାପ୍ରଶିରାରୁ ଜଳ ପତ୍ରଫଳକ ମଧ୍ୟକୁ ଗତିକରେ ।
  • ଶିରାପ୍ରଶିରାରେ ଜଳର ବିସରଣ ଚାପ କମିଯିବାରୁ ପତ୍ରଫଳକ ଓ ଶିରାପ୍ରଶିରାରେ ପୂର୍ବାବସ୍ଥା ଆଣିବାପାଇଁ ଜଳ, କାଣ୍ଡର ଜାଇଲେମ୍ ଟିସୁରୁ ପତ୍ରର ଶିରାପ୍ରଶିରାକୁ ଗତିକରେ ।
  • କାଣ୍ଡରେ ଥିବା ଜାଇଲେମ୍‌ରେ ଜଳର ଧାରା ଅକ୍ଷୁଣ୍ଣ ରଖିବାପାଇଁ ଜଳ ମୂଳରୁ ଶୋଷିତ ହୋଇ କାଣ୍ଡ ପର୍ଯ୍ୟନ୍ତ ଆସେ ଅର୍ଥାତ୍‌ ପତ୍ରପୃଷ୍ଠରେ ଉଲ୍ଲେଦନଜନିତ ଆକର୍ଷଣ ଯୋଗୁଁ ମୂଳରୁ ପତ୍ର ପର୍ଯ୍ୟନ୍ତ ଜଳର ଏକ ନିରବଚ୍ଛିନ୍ନ ଧାରା ପ୍ରବାହିତ ହୁଏ ।
  • ଜଳର ଏହି ଧାରାକୁ ଉତ୍ସୁଦନ ସ୍ରୋତ କୁହାଯାଏ । ଏହି ଜଳଧାର ନିମ୍ନୋକ୍ତ 2ଟି କାରଣଯୋଗୁଁ ସହଜରେ ଛିନ୍ନ ହୁଏନାହିଁ –

ଯଥା :
(i) ସଂସକ୍ତି ବଳ ଓ
(ii) ସଂଲଗ୍ନ ବଳ ।

(ଗ) ଶିରା ଓ ଧମନୀ :
ଉ-

  • ଶିରା ଓ ଧମନୀ ମଧ୍ୟରେ ରକ୍ତକୁ ସଞ୍ଚାଳିତ କରିବାରେ ହୃତ୍‌ପିଣ୍ଡ ମୁଖ୍ୟତଃ ଗୋଟିଏ ପମ୍ପ ପରି ଅବିରାମ ଭାବେ କାର୍ଯ୍ୟ କରିଥାଏ ।
  • ହୃତ୍‌ପିଣ୍ଡର ସଙ୍କୋଚନଜନିତ ଚାପ ଫଳରେ ଧମନୀ ଓ ରକ୍ତକୈଶିକ ଦେଇ ରକ୍ତ ପ୍ରବାହିତ ହୋଇ ଶରୀରର ପ୍ରତ୍ୟେକ କୋଷ ନିକଟରେ ପହଞ୍ଚେ । ଏଥୁରୁ କୋଷ ଅମ୍ଳଜାନ, ଖାଦ୍ୟ ଓ ଅନ୍ୟାନ୍ୟ ପଦାର୍ଥ ଆବଶ୍ୟକ ମୁତାବକ ସଂଗ୍ରହ କରେ ।
  • ଅମ୍ଳଜାନ ଓ ଖାଦ୍ୟ, କୋଷ ମଧ୍ୟରେ ବ୍ୟବହାର ହେଲାପରେ କୋଷରୁ ବାହାରୁଥ‌ିବା ଅଙ୍ଗାରକାମ୍ଳ ଓ ବିଭିନ୍ନ ବର୍ଜ୍ୟବସ୍ତୁ କୋଷ ବାହାରକୁ ଆସେ ।
  • ପ୍ରଥମେ ଶିରା ରକ୍ତକୈଶିକ ଓ ପରେ ଛୋଟ ଶିରାଦ୍ୱାରା ସେ ସମସ୍ତ ସଂଗୃହୀତ ହୋଇ ଶିରା ମଧ୍ୟକୁ ପ୍ରବେଶ କରେ ଓ ଶିରା ମଧ୍ୟରେ ପ୍ରବାହିତ ହୋଇ ହୃତ୍‌ପିଣ୍ଡ ଆଡ଼କୁ ଆସେ ।
  • ଶିରା ଉପରେ ଥ‌ିବା ପେଶୀର ସଂକୋଚନ ଓ ପ୍ରସାରଣ ଯୋଗୁଁ ରକ୍ତ ଠେଲି ହୋଇ ହୃତ୍‌ପିଣ୍ଡ ପର୍ଯ୍ୟନ୍ତ ଆସେ ।
  • ଏହାଛଡ଼ା ଶିରାରେ ରହିଛି ଏକ ବିଶେଷ ଧରଣର କପାଟିକା ଯାହାଫଳରେ ରକ୍ତ ଶିରା ମଧ୍ୟରେ ପଛକୁ ଫେରିପାରେ ନାହିଁ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

(ଘ) ରକ୍ତବର୍ଗ :

  • ପ୍ରତ୍ୟେକ ବ୍ୟକ୍ତିରେ ଏକ ନିର୍ଦ୍ଦିଷ୍ଟ ବର୍ଗର ରକ୍ତ ଥାଏ । ଏହି ତଥ୍ୟ କାର୍ଲ ଲ୍ୟାଣ୍ଡଷ୍ଟେଇନ୍‌ର ପ୍ରଥମେ ଆବିଷ୍କାର କରିଥିଲେ । ଏଥ‌ିପାଇଁ 1930 ମସିହାରେ ତାଙ୍କୁ ନୋବେଲ୍‌ ପୁରସ୍କାରରେ ସମ୍ମାନିତ
  • ସେ ଦର୍ଶାଇଥିଲେ ଯେ ଲୋହିତ ରକ୍ତକଣିକାର ବାହ୍ୟ ଆବରଣରେ ରହିଛି କିଛି ବିଶେଷ ପ୍ରୋଟିନ୍ । ଏହି ପ୍ରୋଟିନ୍‌କୁ ସେ A ଓ B ନାମରେ ନାମିତ କରିଥିଲେ ।
  • ଲୋହିତ ରକ୍ତକଣିକାର ଆବରଣରେ ଥ‌ିବା ଏହି ପ୍ରୋଟିନ୍‌କୁ ଏଣ୍ଟିଜେନ୍ କୁହାଯାଏ । ପ୍ଲାଜ୍‌ମାରେ ସେହିପରି ରହିଛି ଦୁଇଟି ପ୍ରୋଟିନ୍ ଯାହାକୁ ଏଣ୍ଟିବଡ଼ି କୁହାଯାଏ ।
  • ଏଣ୍ଟିଜେନ୍‌ ଓ ଏଣ୍ଟିବଡ଼ିର ବିଶେଷତ୍ୱ ହେଉଛି ଏକ ନିର୍ଦ୍ଦିଷ୍ଟ ଏଣ୍ଟିବଡ଼ି କେବଳ ତାହାପାଇଁ ଉଦ୍ଦିଷ୍ଟ ଏଣ୍ଟିଜେନ୍‌କୁ ଚିହ୍ନିପାରେ ।
  • ଲୋହିତ ରକ୍ତକଣିକା ଆବରଣରେ ଥିବା ଏଣ୍ଟିଜେନ ଏବଂ ପ୍ଲାଜ୍‌ମାରେ ଥ‌ିବା ଏଣ୍ଟିବଡ଼ିର ଉପସ୍ଥିତି ଉପରେ ନିର୍ଭର କରି ମଣିଷରେ ଚାରୋଟି ମୁଖ୍ୟ ରକ୍ତବର୍ଗ ନିରୂପିତ ହୋଇଛି ।
  • ଏହି ବର୍ଗଗୁଡ଼ିକ ହେଉଛି A, B, AB, O ।

() କୈଶିକ ଆକର୍ଷଣ
ଉ-

  • ଗୋଟିଏ କୈଶିକ ନଳୀକୁ ଜଳରେ ବୁଡ଼ାଇଲେ କୈଶିକ ଆକର୍ଷଣଜନିତ ଚାପ ଏବଂ ଜଳର ଉଚ୍ଚ ପୃଷ୍ଠତାନ ଫଳରେ ଜଳ କୈଶିକ ନଳୀ ମଧ୍ୟଦେଇ କିଛି ଉପରକୁ ଉଠିଯାଏ ।
  • ନଳୀ ମଧ୍ଯରେ ଜଳର ଉଚ୍ଚତା ବୃଦ୍ଧି ନଳୀର ବ୍ୟାସ ଉପରେ ନିର୍ଭର କରେ
  • ନଳୀର ବ୍ୟାସ ଯେତେ ଛୋଟ ହୁଏ ଜଳର ଉଚ୍ଚତା ସେତିକି ଅଧ୍ବକ ହୁଏ ।
  • ଜାଇଲେମ୍ କୈଶିକ ନଳୀ ସଦୃଶ ଏବଂ ତାହା ମଧ୍ୟଦେଇ ଜଳ କୈଶିକ ଆକର୍ଷଣ ଯୋଗୁଁ ଉପରକୁ
  • ଏକ ମିଲିମିଟରର 100 ଭାଗରୁ 1 ଭାଗ ବ୍ୟାସବିଶିଷ୍ଟ ଜାଇଲେମ୍ ନଳୀରେ କୈଶିକ ଆକର୍ଷଣ ଯୋଗୁଁ ଜଳ 3 ମିଟର ପର୍ଯ୍ୟନ୍ତ ଉଠିପାରେ ।
  • କେତେକ ଜାଇଲେମ୍ ଟିସୁର ବ୍ୟାସ 0.001 ମିଲିମିଟରରୁ ଊଣା । ତେଣୁ ଉକ୍ତ ନଳୀରେ ଜଳ 10 ମିଟର ପର୍ଯ୍ୟନ୍ତ ଉଚ୍ଚକୁ ଉଠିପାରେ, ତା’ଠାରୁ ଅଧିକ ନୁହେଁ ।
  • ଛୋଟ ଛୋଟ କମ୍ ଉଚ୍ଚ ଗଛ ପାଇଁ କୈଶିକ ଆକର୍ଷଣଜନିତ ଜଳର ପରିବହନ ସମ୍ଭବପର, ମାତ୍ର ଅତି ଉଚ୍ଚ ବୃକ୍ଷ ପାଇଁ ଏହା ପର୍ଯ୍ୟାପ୍ତ ନୁହେଁ ।

(ଚ) ମୂଳଜ ଜାପ :
ଉ-

  • କୌଣସି ଏକ ଉଭିଦର କାଣ୍ଡକୁ ଅଧାରୁ କାଟିଦେଲେ, କ୍ଷତ ସ୍ଥାନରୁ ଜଳୀୟ ପଦାର୍ଥ ବାହାରୁଥିବା ଲକ୍ଷ୍ୟ କରାଯାଏ । ମୂଳଜ ଚାପ ଯୋଗୁଁ ଏହା ହୋଇଥାଏ ବୋଲି ବିଶ୍ଵାସ କରାଯାଏ ।
  • ଗଛର କଟାଅଂଶରେ ଯଦି ଗୋଟିଏ ମାନୋମିଟର ଖଞ୍ଜି ଦିଆଯାଏ, ତେବେ ମୂଳରେ ଯେଉଁ ଚାପ ସୃଷ୍ଟି ହୁଏ, ତାହାକୁ ମପାଯାଇପାରେ
  • ଯଦି ଜଳର ଉର୍ଶ୍ୱପରିବହନ ପାଇଁ ମୂଳଜ ଚାପ ଆବଶ୍ୟକ, ତେବେ ଉଚ୍ଚ ଗଛଗୁଡ଼ିକରେ ଏହି ଚାପର ପରିମାଣ ଅଧ‌ିକ ହେବା କଥା, ମାତ୍ର ତାହା ହୁଏନାହିଁ ।
  • ଏହି ସମସ୍ତ କାରଣରୁ ଜଳ ପରିବହନରେ ମୂଳଜ ଚାପର ବିଶେଷ ଭୂମିକା ନାହିଁ କହିଲେ ଚଳେ ।

Question 9.
ସଂକ୍ଷେପରେ ଉତ୍ତର ଦିଅ ।
(କ) କୈଶିକ ଆକର୍ଷଣ ଯୋଗୁଁ ଜଳର ପରିବହନ କିପରି ହୋଇଥାଏ ?
ଉ-

  • ଫଳରେ ଜଳ କୈଶିକ ନଳୀ ମଧ୍ୟଦେଇ କିଛି ଉପରକୁ ଉଠିଯାଏ ।
  • ନଳୀର ବ୍ୟାସ ଯେତେ କମ୍ ହୁଏ ଜଳ ସେତିକି ଅଧ୍ଵ ଉଚ୍ଚକୁ ଉଠିଯାଏ ।
  • ଉଭିଦର ଜାଇଲେମ୍ ଟିସୁ କୈଶିକ ନଳୀ ପରି କାର୍ଯ୍ୟ କରୁଥିବାରୁ ଜଳର ପରିବହନ ସମ୍ଭବ ହୋଇଥାଏ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

(ଖ) ମଣିଷର ରକ୍ତବର୍ଗ କିପରି ନିର୍ଣ୍ଣୟ କରାଯାଇଛି ?
ଉ-

  • ଲୋହିତ ରକ୍ତ କଣିକା ଆବରଣରେ ଥିବା ପ୍ରୋଟିନ୍‌କୁ ଏଣ୍ଟିଜେନ ଏବଂ ପ୍ଲାଜ୍‌ମାରେ ପ୍ରୋଟିନକୁ ଏଣ୍ଟିବଡ଼ି କୁହାଯାଏ ।
  • ଏକ ନିର୍ଦ୍ଦିଷ୍ଟ ଏଣ୍ଟିବଡ଼ି ତା’ ପାଇଁ ଉଦ୍ଦିଷ୍ଟ ଏଣ୍ଟିଜେନ୍‌କୁ ଚିହ୍ନିପାରେ ।
  • ଏହି ଏଣ୍ଟିବଡ଼ି ଓ ଏଣ୍ଟିଜେନ୍‌ର ଉପସ୍ଥିତି ଉପରେ ନିର୍ଭର କରି ରକ୍ତବର୍ଗ ନିର୍ଣ୍ଣୟ କରାଯାଉଛି ।

(ଗ) ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ପ୍ରକୋଷ୍ଠ ଓ କପାଟିକାର ଅବସ୍ଥିତି ଲେଖ ।
ଉ-

  • ମଣିଷ ହୃତ୍‌ପିଣ୍ଡରେ ଚାରୋଟି ପ୍ରକୋଷ୍ଠ ରହିଛି । ଉପର ପ୍ରକୋଷ୍ଠଗୁଡ଼ିକୁ ଅଳିନ୍ଦ ଓ ତଳ ପ୍ରକୋଷ୍ଠଗୁଡ଼ିକୁ ନିଳୟ କୁହାଯାଏ । ଦକ୍ଷିଣ ପାର୍ଶ୍ଵରେ ଥ‌ିବା ଉପର ଓ ତଳ ପ୍ରକୋଷ୍ଠକୁ ଯଥାକ୍ରମେ ଦକ୍ଷିଣ ଅଳିନ୍ଦ ଓ ଦକ୍ଷିଣ ନିଳୟ ଏବଂ ବାମ ପାର୍ଶ୍ଵରେ ଥୁବା ଉପର ଓ ତଳ ପ୍ରକୋଷ୍ଠକୁ ବାମ ଅଳିନ୍ଦ ଓ ବାମ ନିଳୟ କୁହାଯାଏ ।
  • ଦକ୍ଷିଣ ଅଳିନ୍ଦ ଓ ଦକ୍ଷିଣ ନିଳୟ ଦ୍ଵାରରେ ତିନି ପାଖୁଡ଼ାବିଶିଷ୍ଟ କପାଟିକା ଏବଂ ବାମ ଅଳିନ୍ଦ ଓ ବାମ ନିଳୟ ଭିତରେ ଦୁଇ ପାଖୁଡ଼ାବିଶିଷ୍ଟ କପାଟିକା ଥାଏ ।
  • ନିଳୟ – ରକ୍ତବାହିନୀ ଦ୍ଵାରରେ ଅର୍ଦ୍ଧଚନ୍ଦ୍ରାକୃତି କପାଟିକା ଥାଏ ।

(ଘ) କେଉଁ କାରକମାନଙ୍କ ଯୋଗୁ ଜଳ ମୂଳରୁ ଗଛର ଅଗ୍ରଭାଗ ପର୍ଯ୍ୟନ୍ତ ଯାଏ ?
ଉ-
କୈଶିକ ଆକର୍ଷଣ, ମୂଳଜ ଚାପ, ଉତ୍ସଦନ, ସଂସକ୍ତି ବଳ ଓ ସଂଲଗ୍ନ ବଳର ମିଳିତ ପ୍ରଭାବରେ ଜଳ ମୂଳରୁ ଗଛର ଅଗ୍ରଭାଗ ପର୍ଯ୍ୟନ୍ତ ଯାଏ ।

(ଙ) ଉଦ୍ଭଦରେ ଜଳର ପରିବହନରେ ମୂଳଜ ଚାପର ଭୂମିକା କ’ଣ ? ଉଭିଦରେ ଜଳ ପରିବହନରେ ମୂଳଜ ଚାପ ଅଧିକ ହୋଇନଥାଏ ।
ଉ-
(i) ଉଚ୍ଚ ଗଛ ମୂଳରେ ମୂଳଜ ଚାପ ଅଧିକ ହୋଇନଥାଏ ।
(ii) ଉତ୍ସୁଦନର ବେଗ ସର୍ବାଧ‌ିକ ଥିବାବେଳେ ମୂଳଜ ଚାପ ସର୍ବନିମ୍ନ ହୋଇଥାଏ ।

Question 10.
ଗୋଟିଏ ବାକ୍ୟରେ ଉତ୍ତର ଦିଅ ।
(କ) ମଣିଷ ରକ୍ତର କେଉଁଠାରେ ଆଣ୍ଟିଜେନ୍ ଓ ଆଣ୍ଟିବଡ଼ି ରହିଥା’ନ୍ତି ?
ଉ-
ମଣିଷ ରକ୍ତର ଲୋହିତ ରକ୍ତକଣିକାର ବାହ୍ୟ ଆବରଣରେ ଆଣ୍ଟିଜେନ୍ ଓ ପ୍ଲାଜ୍‌ମାରେ ଆଣ୍ଟିବଡ଼ି ଥାଏ ।

(ଖ) ଲ୍ୟାଣ୍ଡଷ୍ଟେଇନର କେଉଁ ଜାତିର ମାଙ୍କଡ଼ଙ୍କ ଲୋହିତ ରକ୍ତ କଣିକାର ବାହ୍ୟ ଆବରଣରେ Rh ଆଣ୍ଟିଜେନ୍ ଥ‌ିବାର ଦେଖ‌ି ।
ଉ-
ଲ୍ୟାଣ୍ଡଷ୍ଟେଇନ୍‌ର ପାତିମାଙ୍କଡ଼ ବା ରେସସ୍ ମଙ୍କିର ଲୋହିତ ରକ୍ତକଣିକାର ବାହ୍ୟ ଆବରଣରେ Rh ଆଣ୍ଟିଜେନ୍ ଥ‌ିବାର ଦେଖ‌ିଲେ ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

(ଗ) ମଣିଷ ହୃତ୍‌ପିଣ୍ଡ କେତେ ପ୍ରକୋଷ୍ଠବିଶିଷ୍ଟ ?
ଉ-
ମଣିଷ ହୃତ୍‌ପିଣ୍ଡ ଚାରି ପ୍ରକୋଷ୍ଠବିଶିଷ୍ଟ ।

(ଘ) ପତ୍ରରେ ପ୍ରସ୍ତୁତ ଶ୍ଵେତସାର କିପରି ଭାବରେ ଗଛର ବିଭିନ୍ନ ଅଂଶକୁ ସ୍ଥାନାନ୍ତରିତ ହୋଇଥାଏ ?
ଉ-
ପତ୍ରରେ ପ୍ରସ୍ତୁତ ଶ୍ଵେତସାର ଫ୍ଲୋଏମ୍ ସାହାଯ୍ୟରେ ପରିବାହିତ ହୋଇ ଗଛର ବିଭିନ୍ନ ଅଂଶକୁ ସ୍ଥାନାନ୍ତରିତ ହୋଇଥାଏ ।

(ଙ) ଗଛର ମୂଳଜ ଚାପ କେଉଁ ଯନ୍ତ୍ର ସାହାଯ୍ୟରେ ମପାଯାଇପାରେ ?

ଗଛର ମୂଳଜ ଚାପ ମାନୋମିଟର ଯନ୍ତ୍ର ସାହାଯ୍ୟରେ ମପାଯାଇପାରେ ।

Question 11.
ଗୋଟିଏ ଶବ୍ଦରେ ଉତ୍ତର ଦିଅ ।
(କ) କେଉଁ ରକ୍ତବାହିନୀଦ୍ୱାରା ରକ୍ତ ମଣିଷ ହୃତ୍‌ପିଣ୍ଡରୁ ଶରୀରର ବିଭିନ୍ନ ଅଂଶକୁ ପ୍ରବାହିତ ହୋଇଥାଏ ?
ଉ-
ମହି।ମକୁ।

(ଖ) ଶିରାରେ କାହାର ଅବସ୍ଥିତ ଯୋଗୁଁ ରକ୍ତ ପଛକୁ ଫେରିପାରେ ନାହିଁ ?
ଉ-
କାପରିକୁ।

(ଗ) ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ଦକ୍ଷିଣ ଅଳିନ୍ଦ ଓ ଦକ୍ଷିଣ ନିଳୟ ଦ୍ବାରରେ କେତୋଟି ପାଖୁଡ଼ା ବିଶିଷ୍ଟ କପାଟିକା ରହିଛି ?
ଉ-
ତିନିପାଖୁଡ଼ା ବିଶିଷ୍ଟ କପାଟିକା

(ଘ) ନିଳୟ ଓ ରକ୍ତବାହିନୀ ମଧ୍ୟରେ କେଉଁ ପ୍ରକାର କପାଟିକା ରହିଛି ?
ଉ-
BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ - 3

(ଙ) ଉଭିଦର ବାୟବୀୟ ଅଂଶରୁ ଜଳୀୟବାଷ୍ପ ଆକାରରେ ଜଳର ନିର୍ଗମନ ପ୍ରକ୍ରିୟାକୁ କ’ଣ କୁହାଯାଏ ?
ଉ-
ଉଭିଦର

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

Question 12.
ଶୂନ୍ୟସ୍ଥାନ ପୂରଣ କର ।
(କ) ପତ୍ରରେ ପ୍ରସ୍ତୁତ ଶ୍ଵେତସାର …………………….. ଟିସୁଦ୍ଵାରା ସ୍ଥାନାନ୍ତରିତ ହୋଇଥାଏ ।
(ଖ) ସମସ୍ତଙ୍କୁ ରକ୍ତ ଦେଇ ପାରୁଥିବା ବ୍ୟକ୍ତିକୁ ………………….. କୁହାଯାଏ ।
(ଗ) ବାମ ଅଳିନ୍ଦ ଓ ବାମ ନିଳୟ ମଧ୍ୟରେ ଥ‌ିବା କପାଟିକା ……………………..ପାଶୂଷ୍ ଟି ଶୂ ସ ।
(ଙ) ଷ୍ ଙ୍କ ଦ6 ର କଳ ରେ ଟିସୁ ମାଧ୍ୟମରେ ବିଭିନ୍ନ ଅଂଶକୁ ପରିବାହିତ …………………. ହୋଇଥାଏ ।
(ଙ) ଉସ୍ବେଦନଦ୍ଵାରା ଉଭିଦର …………………… ନିୟନ୍ତ୍ରିତ ହୋଇଥାଏ ।
Answer:
(କ) ଫ୍ଲୋଏମ୍
(ଖ) ସର୍ବଜନ ଦାତା
(ଗ) 2,
(ଘ) ଜାଇଲେମ୍
(ଙ) ତାପମାତ୍ରା

Question 13.
ବାକ୍ୟରେ ଚିହ୍ନିତ ରେଖାଙ୍କିତ ଶବ୍ଦ ଶବ୍ଦପୁଞ୍ଜକୁ ବଦଳାଇ ଠିକ୍ ବାକ୍ୟ ଲେଖ ।
(କ) ଧମନୀ ବାଟ ଦେଇ ମଣିଷ ଶରୀରର ବିଭିନ୍ନ ଅଂଶରୁ ରକ୍ତ ସଂଗୃହୀତ ହୋଇ ହୃତ୍‌ପିଣ୍ଡଠାରେ ପହଞ୍ଚେ ।
ଉ-
ଉର୍ବ ମହାଶିରା ଓ ନିମ୍ନ ମହାଶିରା ବାଟ ଦେଇ ମଣିଷ ଶରୀରର ବିଭିନ୍ନ ଅଂଶରୁ ରକ୍ତ ସଂଗୃହୀତ ହୋଇ ହୃତ୍‌ପିଣ୍ଡ ଠାରେ ପହଞ୍ଚେ ।

(ଖ) ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ବାମ ଅଳିନ୍ଦ ଓ ବାମ ନିଳୟ ଦ୍ଵାରରେ ଚାରି ପାଖୁଡ଼ା ବିଶିଷ୍ଟ କପାଟିକା ରହିଛି ।
ଉ-
ମଣିଷ ହୃତ୍‌ପିଣ୍ଡର ବାମ ଅଳିନ୍ଦ ଓ ବାମ ନିଳୟ ଦ୍ବାରରେ ଦୁଇ ପାଖୁଡ଼ା ବିଶିଷ୍ଟ କପାଟିକା ରହିଛି ।

ମଣିଷ ଶରୀରରେ ଏକକ ସଞ୍ଚାଳନ ପ୍ରକାର ରକ୍ତ ସଞ୍ଚାଳନ ଦେଖାଯାଏ ।
ଉ-
ମଣିଷ ଶରୀରରେ ଦୈତ ସଞ୍ଚାଳନ ପ୍ରକାର ରକ୍ତ ସଞ୍ଚାଳନ ଦେଖାଯାଏ ।

(ଘ) କୈଶିକ ଆକର୍ଷଣ ପାଇଁ ଜଳର ସଂସକ୍ତି ବଳ ଦରକାର ।
ଉ-
କୈଶିକ ଆକର୍ଷଣ ପାଇଁ ଜାଇଲେମ୍ ନଳୀର ବ୍ୟାସ ଛୋଟ ହେବା ଦରକାର ।

BSE Odisha 10th Class Life Science Solutions Chapter 3 ପରିବହନ ଓ ସଞ୍ଚାଳନ

Question 14.
ପ୍ରଥମ ଦୁଇଟି ଶବ୍ଦର ସମ୍ପର୍କକୁ ଦେଖୁ ତୃତୀୟ ଶବ୍ଦ ସହ ସମ୍ପର୍କିତ ଶବ୍ଦଟି କ’ଣ ହେବ ଲେଖ ।
(କ) ଦକ୍ଷିଣ ନିଳୟ : ଫୁସ୍‌ଫୁସ୍ ଧମନୀ : : ବାମ ନିଳୟ : ……………………।
(ଖ) ଜୋକ ଲାଳ : ହିରୁଡ଼ିନ୍ : : ମଣିଷ ରକ୍ତ : ……………………।
(ଗ) ଲୋହିତ ରକ୍ତକଣିକା ଆବରଣ : ଏଣ୍ଟିଜେନ୍‌ : : ପ୍ଲାଜମା : ……………………।
(ଘ) ମୂଳଜ ଚାପ : ଚେର,: : କୈଶିକ ଆକର୍ଷଣ : ……………………।
Answer:
(କ) ମହାଧମନୀ
(ଖ) ହିପାରିନ୍
(ଗ) ଏଣ୍ଟିବଡ଼ି
(ଶ) ଲାଳଲୋମାନ୍

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b)

Odisha State Board Elements of Mathematics Class 12 Solutions CHSE Odisha Chapter 11 Differential Equations Ex 11(b) Textbook Exercise Questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Exercise 11(b)

Solve the following differential equations.
Question 1.
\(\frac{d y}{d x}\) + y = e-x
Solution:
Given equation is \(\frac{d y}{d x}\) + y = e-x … (1)
This is a linear differential equation.
Here P = 1, Q = e-x
So the integrating factor
I.F. = e∫P dx = e∫dx = ex
The solution of (1) is given by
yex = ∫e-x . ex dx = ∫dx = x + C
⇒ y – xe-x + Ce-x

Question 2.
(x2 – 1)\(\frac{d y}{d x}\) + 2xy = 1
Solution:
Given equation is (x2 – 1)\(\frac{d y}{d x}\) + 2xy = 1
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.2

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b)

Question 3.
(1 – x2)\(\frac{d y}{d x}\) + 2xy = x \(\sqrt{1-x^2}\)
Solution:
Given equation is
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.3

Question 4.
x log x \(\frac{d y}{d x}\) + y = 2 log x
Solution:
Given equation is
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.4

Question 5.
(1 + x2)\(\frac{d y}{d x}\) + 2xy = cos x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.5

Question 6.
\(\frac{d y}{d x}\) + y sec x = tan x
Solution:
Given equation is
\(\frac{d y}{d x}\) + y sec x = tan x
This is a linear equation where
P = sec x, Q = tan x
I.F. = e∫sec dx
= e(sec x + tan x) = sec x + tan x
The solution is y . (sec x + tan x)
= ∫(sec x + tan x) tan x dx
= ∫(sec x tan x + tan2 x) dx
= ∫(sec x . tan x + sec2 x – 1) dx
= ∫(sec x + tan x) – x + C
⇒ (y – 1) (sec x + tan x) + x = C

Question 7.
(x + tan y) dy = sin 2y dx
Given equation can be written as
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.7

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b)

Question 8.
(x + 2y3)\(\frac{d y}{d x}\) = y
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.8

Question 9.
sin x\(\frac{d y}{d x}\)+ 3y = cos x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.9
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.9.1

Question 10.
(x + y + 1)\(\frac{d y}{d x}\) = 1
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.10

Question 11.
(1 + y2) dx + (x – \(e^{-\tan ^{-1} y}\)) dy = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.11

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b)

Question 12.
x\(\frac{d y}{d x}\) + y = xy2
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.12
⇒ z = -x ln x + Cx
⇒ \(\frac{1}{y}\) = -x ln x + Cx
⇒ 1 = -xy ln x + Cxy
∴ The solution is (C – ln x) xy = 1

Question 13.
\(\frac{d y}{d x}\) + y = y2 log x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.13

Question 14.
(1 + x2)\(\frac{d y}{d x}\) = xy – y2
Solution:
The given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.14
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.14.1

Question 15.
\(\frac{d y}{d x}\) + \(\frac{y}{x-1}\) = \(x y^{\frac{1}{2}}\)
Solution:
The given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.15

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b)

Question 16.
\(\frac{d y}{d x}\) + \(\frac{y}{x}\) = x2, y(1) = 1
Solution:
The given equation can be written as
\(\frac{d y}{d x}\) + \(\frac{y}{x}\) = x2, y(1) = 1 … (1)
This is a linear equation.
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.16

Question 17.
\(\frac{d y}{d x}\) + 2y tan x = sin x, y\(\left(\frac{\pi}{3}\right)\) = 0.
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(b) Q.17

CHSE Odisha Class 11 English Notice Writing

Odisha State Board CHSE Odisha Class 11 Invitation to English 3 Solutions Notice Writing Textbook Activity Questions and Answers.

CHSE Odisha 11th Class English Notice Writing

Writing Notices

A notice is a written or printed news, announcement or information. It is usually displayed publicly on a school/college notice-board. A notice can also be given for insertion in a newspaper like an advertisement. But there is one main difference between an advertisement and a notice. An advertisement is chiefly commercial (or matrimonial) in nature; but a notice is a general piece of information for a particular group. A notice should be in complete sentences or even in the form of a short paragraph, whereas an advertisement can be in the form of merely catching phrase and slogans.

CHSE Odisha Class 11 English Notice Writing

Activity 8

The Dramatic and Cultural Association of your college plans to organise an Oriya Debate Competition for +2 students. As the Secretary of the Association, you have put up the following notice:

As the Secretary of the Association, you have put up the following notice

A well-written notice will tell its readers :
what is about to happen
when it will happen
where it will happen
who can take part
who to contact/apply to
how to contact/apply
where to apply to
etc.

Read the notice given above and check if it contains all these points.
Answer:
This notice does not contain all these points such as, ‘how to conduct/apply/ where to apply to’.

CHSE Odisha Class 11 English Notice Writing

Activity 9

ere is a notice put up by the Youth Adventure Club of Bombay. The sentences in the notice are not in the right order. Re-write the notice, arranging the sentences in the correct order.
1. The voyage is fully sponsored by the Club.
2. The Club plans to take young people on a one-year round-the-world voyage of EXPLORATION AND DISCOVERY, on SS VARSHA, starting 1st January 2010.
3. In addition, a knowledge of cooking and nursing is desirable.
4. The Youth Adventure Club invites young people of both sexes to apply to take part in the ADVENTURE OF A LIFETIME.
5. If interested, please contact the Secretary, Youth Adventure Club, 7 Marine Drive, Bombay on or before 24 October.
6. Those interested should be aged 16-24, enthusiastic, and physically fit.
7. They should have experience of sailing and swimming.

Answer:

Youth Adventure Club, Bombay
NOTICE

10 June, 20_

The Youth Adventure Club invites young people of both sexes to apply to take part in the ADVENTURE OF A LIFE-TIME. The Club plans to take young people on a one year, round-the-world voyage of EXPLORATION AND DISCOVERY, on SS VARSH, starting 1st January, 20. The voyage is fully sponsored by the Club. Those interested should be aged 16-24, enthusiastic and physically fit. They should have experience of sailing and swimming. In addition, a knowledge of cooking and nursing preferable. If interested, please contact the Secretary, Youth Adventure Club, 7, Marine Drive, Bombay on or before 24 October.

CHSE Odisha Class 11 English Notice Writing

Activity 10

The following is a notice put up by the Cultural Secretary of the college. Through this notice, he wants to inform 1 and II year +2 students about an Inter-College One Act Play Competition. Read the notice carefully and try to improve upon it.

The following is a notice put up by the Cultural Secretary of the college

Answer:

+2 Cultural Association
B.J.B. College, Bhubaneswar
NOTICE

1 March, 20______

An Inter-College One-Act Play Competition for I and II year students will be held in our college on 9.3.20_. Willing participants are required to submit their names to the Cultural Secretary by 11 a.m. on 3.3.20_.

Pranab Mishra
Secretary

CHSE Odisha Class 11 English Notice Writing

Activity 11

(a) Your college has arranged to present an episode on Door Darshan in the popular programme “Meet the Young Artists”. Write a notice in not more than 50 words for the college notice board, inviting talented students to appear for trials for different items on 20 April. You have invited a famous Door Darshan artist to be present at the selection. You are the Secretary of the College Cultural Association.
(b) You are the Secretary of the Day Scholars’ Association. You have planned an excursion to South India. It is partly subsidised. Write a notice, inviting +2 students to take part in the excursion. Your notice should include all the relevant details.
The Youth Adventure Club invites young people of both sexes to

Answer:
(a)

J.K.B.K. College, Cultural Association
NOTICE

13.4.20

J.K.B.K. Cultural Association invites students (singers, musicians, dancers, monoactors etc.) of all classes to display their talents in a trial test before Mr. Prafulla Mohanty, AIR artist on 20th April 20 at the College Auditorium. Selected students will have the opportunity to appear in Doordarshan’s “Meet the Young Artists” programme. Details can be had from the undersigned.

Pranab Kumar Das
Secretary
J.K.B.K. Cultural Association

(b)

Day Scholars’ Association
S.B. Women’s College, Cuttack .
NOTICE

25 April 20

The Day Scholars’ Association invites +2 students for a heavily subsidised South India tour starting 1st May from Bhubaneswar. The tour will cover entire South India in 15 days with stopovers at Madras, Bangalore, Ooty, Madurai, Pondicherry. Interested students can immediately contact the undersigned with Rs. 2000/- to be paid towards boarding, lodging, train-fare and local transport.
Selection on first come first serve basis.

Rita Mishra
Secretary
Day Scholars’ Association

CHSE Odisha Class 11 English Personal Advertisement Writing

Odisha State Board CHSE Odisha Class 11 Invitation to English 3 Solutions Personal Advertisement Writing Textbook Activity Questions and Answers.

CHSE Odisha 11th Class English Personal Advertisement Writing

Personal Advertisements

Broadly speaking, an advertisement is a form of communication intended to promote the sale of a product, or a service to influence public opinion, advance a particular cause, gain political support, to elicit some other response desired by the advertiser. It is also used indirectly to enlighten the public at large about new products and services.
The characteristics of an advertisement are :

  • Catching attention
  • Stimulating interest
  • Arresting desire
  • Supplying convincing details
  • Motivating action

We sometimes find it necessary to place personal advertisements (or ads) in newspapers. The publication of these ads are expensive. Therefore, it is necessary to be brief and concise in writing an ad.

CHSE Odisha Class 11 English Personal Advertisement Writing

Activity 5

Read the following ads very carefully and make sure you understand them. Answer the questions that the teacher asks about them.

Matrimonial:
(a) Wanted beautiful graduate (caste no bar) 5’5″ for an established Khandayat businessman, 29/5’8″, Bhubaneswar. Write to box No. 256, C/o The Samaj, Cuttack.
(b) Wanted Bengali Kayastha groom for fair, good-looking, homely Bengali bride, B.A., 25/5’2″. Write to Box 308, The Samaj, Cuttack.

Accommodation Wanted/To Let:
(c) Wanted 2 bedroom house with bath and kitchen within 1 km of High Court. Contact 2647130.
(d) 1200 sq. feet suplex house to let at Ekamra Villa, Jayadev Vihar, near Biju Patnaik College, Bhubaneswar. Contact 2558162.

Jobs:
(e) Female marketing executive with good command of English. Must own a two-wheeler. Remuneration will not be a constraint for the right candidate. Contact 640712/607014.
(f) Wanted: A Sales Promoter and a Lady Typist. Only Science graduates with pleasant personalities and experience need to apply immediately with bio-data and photographs to the Manager, Chandra Chemicals, Industrial Estate, Rasulgarh. Bhubaneswar.

Sale/Purchase:
(g) One Maruti 800 car, the owner drove, in tip-top condition for immediate sale. Contact (0674) 2554217 between 10 a.m. to 6.30 p.m.
(h) Book your independent bungalow. Price range Rs. 5.17 to 8.00 lakhs. Close to Rasulgarh, Bomikhal, Laxmisagar, near GGP colony. Site under development. Booking started. Contact Sadhu Biswal, Laxmisagar, Ph – 2560642.
Answer:
Not necessary.

CHSE Odisha Class 11 English Personal Advertisement Writing

Activity 6

Here are some short descriptions. Read them carefully and turn them into small ads to be published in your local newspapers. For help, you may look back at the ads in the previous activity.
1. My two-year-old dog has been missing since 6 February, 20. He is of the Alsatian breed and brown in color. He has thick, bushy fur. His name is Jimmy. If you see him, please contact telephone 2551055.
2. Ritz Travels, Bermuda offers an excellent tour package of 15 days just for a paltry sum of Rs. 5000 per head. The package includes board, lodging, train fare, and local transport. The party is leaving Bhubaneswar on 1st March and will cover entire South India with stop-overs at Bangalore, Madras, Pondicherry, and Ooty. If you want to join, contact 2557182.
3. A software Engineer well-placed in the USA, belonging to the Teli caste, is looking for a fair and beautiful girl for an early matrimonial alliance. The girl should be around 25 years of age with a first-class MCA or MBA. Girls having Post Graduate degrees in Physics and Mathematics will also be suitable. There is no caste bar. Contact immediately (0674) 2582396.
4. We require a science graduate to work as Laboratory Assistant in our factory near Puri. Persons with minimum of 5 years’ experience will be preferred. Write within 7 days to Box No. 680, The Samaj, Cuttack.

Answer:
(1) Missing: Brown two-year-old Alsatian named Jimmy since 6 February. Finders contact 551055.
(2) Tour Offer: Entire South India in 15 days with stopovers at Bangalore, Madras, Pondicherry, and Ooty for only Rs. 5000 per head. The package includes boarding, lodging, train fare, and local transport. Party leaving Bhubaneswar on 1st March. Contact Ritz Travels, Bermuda, or Phone at 2557182.
(3) Wanted a fair and beautiful bride for Teli software Engineer, well-placed in the USA. 25-year-old girls with first-class MCA/MBA or PG Physics/Maths preferred. Early Alliance. Caste no bar. Contact immediately at 0674-2582396.
(4) Wanted Lab Asst, for a factory near Puri. Science graduates with a minimum of 5 years of experience are preferred. Write within 7 days to Box No. 680, The Samaj, Cuttack.

CHSE Odisha Class 11 English Personal Advertisement Writing

Activity 7

Write three small ads from this list, to be placed in your local newspaper.
1. You want to sell your TV (cost/make/condition etc.)
2. You are looking for a flat in the town for your parents (size/rent/location etc.)
3. Your father wants to buy a second-hand car (cost/type/condition etc.)
4. Your parents are looking for a suitable bride for your elder brother, (complexion/color/height/age/education/caste, etc.)
5. You want to buy a second-hand two-wheeler.
6. You are looking for a suitable bride for your elder brother who is settled in England as a doctor.
7. Your real-estate company has started constructing 2/3 bedroom flats in your area. Invite customers to buy them.
8. Your parents are looking for a tutor for your younger brother who is in Class IV.
9. A young man in your area has been missing for quite some time.

Answer:
(7) Book Today. 2/3 bedroom flats in centrally located Nayapalli area. Only 4.25 to 6.00 lakhs. Finance available. Construction underway. Contact Metro Builders M4 – 10 Acharya Vihar, BBSR. Ph. 560821.
(8) Wanted Maths/Science tutor for IV Class student – Convent. Teachers with English medium background and 5/6 yrs Exp. may contact 542331 between 6 am to 9 am and 6 pm to 9 pm. Handsome remuneration.
(9) Missing fair young man with earrings – 22/5’4″. Knows Oriya and Telugu. Missing since September 2009. Last seen with blue jeans and white shirts. Informants will be rewarded Ph. 552462.

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ମୌଳିକଗୁଡ଼ିକର ପର୍ଯ୍ୟାୟୀ ଶ୍ରେଣୀକରଣ

Odisha State Board BSE Odisha 10th Class Physical Science Solutions Chapter 5 ମୌଳିକଗୁଡ଼ିକର ପର୍ଯ୍ୟାୟୀ ଶ୍ରେଣୀକରଣ Textbook Exercise Questions and Answers.

BSE Odisha Class 10 Physical Science Solutions Chapter 5 ମୌଳିକଗୁଡ଼ିକର ପର୍ଯ୍ୟାୟୀ ଶ୍ରେଣୀକରଣ

Question 1.
ପର୍ଯ୍ୟାୟ ସାରଣୀର ପର୍ଯ୍ୟାୟଗୁଡ଼ିକରେ ବାମରୁ ଡାହାଣକୁ ଗଲେ କ’ଣ ହୁଏ ନାହିଁ ?
(a) ମୌଳିକଗୁଡ଼ିକର ଧାତବ ପ୍ରକୃତି କମିଯାଏ ।
(b) ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂଖ୍ୟା ବୃଦ୍ଧି ପାଏ ।
(c) ପରମାଣୁଗୁଡ଼ିକ ସହଜରେ ଇଲେକ୍‌ଟ୍ରନ୍ ତ୍ୟାଗ କରିପାରନ୍ତି ।
(d) ଅକ୍ସାଇଡ୍‌ଗୁଡ଼ିକ ଅଧ୍ଵ ଅମ୍ଳୀୟ ହୋଇଥାଏ ।
Answer:
(c) ପରମାଣୁଗୁଡ଼ିକ ସହଜରେ ଇଲେକ୍‌ଟ୍ରନ୍‌ ତ୍ୟାଗ କରିପାରନ୍ତି ।

Question 2.
X ମୌଳିକ, XCl2 ସଙ୍କେତ ସହ ଏକ କ୍ଲୋରାଇଡ୍ ସୃଷ୍ଟିକରେ । ତାହା କଠିନ ଏବଂ ଉଚ୍ଚ ଗଳନାଙ୍କର ଏକ ଯୌଗିକ । ପର୍ଯ୍ୟାୟ ସାରଣୀର କେଉଁ ମୌଳିକ ଗ୍ରୁପରେ X ରହିଥ‌ିବାରୁ ସବୁଠାରୁ ଅଧିକ ସମ୍ଭାବନା ଅଛି ?
(a) Na
(b) Mg
(c) Al
(d) Si
Answer:
(b) Mg

Question 3.
ଜେଇଁ ମୌଳିକର
(a) ଦୁଇଟି କକ୍ଷ ରହିଛି ଯେଉଁଗୁଡ଼ିକରେ ସମ୍ପୂର୍ଣ୍ଣ ମାତ୍ରାରେ ଇଲେକ୍‌ଟ୍ରନ ଭର୍ତ୍ତି ହୋଇଛି ?
ଉ :
ନିଅନ୍ (Ne)

(b) ଇଲେକ୍ଟ୍ରନ୍‌ ର୍ସରରନା 2,8,2 ?
ଉ :
ମ୍ୟାଗ୍ନେସିୟମ୍ (Mg)

(c) ସଂଯୋଜକ କକ୍ଷରେ ଚାରୋଟି ଇଲେକ୍‌ଟ୍ରନ୍ ସହିତ ସମୁଦାୟ ତିନୋଟି କକ୍ଷ ରହିଛି ?
ଉ :
ସିଲିକନ୍ (Si)

(d) ସଂଯୋଜକ କକ୍ଷରେ ତିନୋଟି ଇଲେକ୍‌ଟ୍ରନ୍ ସହିତ ସମୁଦାୟ ଦୁଇଟି କକ୍ଷ ଅଛି ?
ଉ :
ବୋରନ୍ (B)

(e) ଦ୍ଵିତୀୟ କକ୍ଷରେ ପ୍ରଥମ କକ୍ଷରେ ଥିବା ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂଖ୍ୟାର ଦୁଇଗୁଣ ରହିଛି ?
ଉ :
କାର୍ବନ (C)

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 4.
(a) ବୋରନ୍‌ର କେଉଁ ଧର୍ମଟି ପର୍ଯ୍ୟାୟ ସାରଣୀର ବୋରନ୍ ଥ‌ି ସ୍ତମ୍ଭର ଅନ୍ୟ ମୌଳିକଗୁଡ଼ିକର ଧର୍ମ ସହିତ ସମାନ ?
ଉ :
ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ୍ 13ରେ ବୋରନ୍ ଅବସ୍ଥିତ । ସ୍ତମ୍ଭ 13ରେ ଥିବା ସମସ୍ତ ମୌଳିକଗୁଡ଼ିକର ଦୁଇଟି ସାଧାରଣ ଧର୍ମ ତ୍ରେଲା
(i) ସାଧାରଣ ତାପମାତ୍ରା (25°C)ରେ ସମସ୍ତ ମୌଳିକ କଠିନ ।
(ii) ସମସ୍ତ ମୌଳିକ ଯୋଜ୍ୟତା ଓ ଦର୍ଶାନ୍ତି ।

(b) ଫ୍ଲୋରିନ ଗ୍ରୁପ୍‌ର ସମସ୍ତ ମୌଳିକର କେଉଁ ପ୍ରକୃତିଟି ସମାନ ?
ଉ :
ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ୍ 17ରେ ଫ୍ଲୋରିନ୍ ଅବସ୍ଥିତ । ଏହି ଗ୍ରୁପ୍‌ରେ ଥ‌ିବା ସମସ୍ତ ମୌଳିକଗୁଡ଼ିକର ସାଧାରଣ ଧର୍ମ ହେଲା
(i) ସମସ୍ତ ମୌଳିକର ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରମ୍‌ ସଂଖ୍ୟା 7 ।
(ii) ସମସ୍ତ ମୌଳିକର ଯୋଗ୍ୟତା ଏବଂ ଏଗୁଡ଼ିକ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ ।

Question 5.
ଗୋଟିଏ ପରମାଣୁର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା ହେଉଛି 2,8,7 ।
(a) ଏହି ମୌଳିକର ପରମାଣୁ କ୍ରମାଙ୍କ କେତେ ?
ପରମାଣୁ କ୍ରମାଙ୍କ = 2 + 8 + 7 = 17
(b) ଏହା ନିମ୍ନରେ ଦିଆଯାଇଥବା କେଉଁ ମୌଳିକର ରାସାୟନିକ ପ୍ରକୃତି ସହ ସାମଞ୍ଜସ୍ୟ ରହିବ ? (ବନ୍ଧନୀ ମଧ୍ୟରେ ମୌଳିକର ପରମାଣୁ କ୍ରମାଙ୍କ ଦିଆଯାଇଛି)
N(7)
F(9)
P(15)
Ar (18)
ଉ :
F(9)

Question 6.
ଲିଥ୍ୟମ, ସୋଡ଼ିୟମ, ପୋଟାସିୟମ, ଏହି ସବୁ ଧାତୁ ଜଳ ସହିତ ପ୍ରତିକ୍ରିୟା କରି ହାଇଡ୍ରୋଜେନ ଗ୍ୟାସ୍ ସୃଷ୍ଟି କରିଥା’ନ୍ତି । ଏହି ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁରେ କୌଣସି ସାମଞ୍ଜସ୍ୟ ରହିଛି କି ?
ଉ :
ଲିଥ୍ୟମ୍‌ର ପରମାଣୁ କ୍ରମାଙ୍କ 3 ଓ ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା 2, 1
ସୋଡ଼ିୟମ୍‌ର ପରମାଣୁ କ୍ରମାଙ୍କ 11 ଓ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା 2, 8, 1
ପୋଟାସିୟମ୍ର ପରମାଣୁ କ୍ରମାଙ୍କ 19 ଓ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା 2, 8, 8, 1
ଏହି ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁର ବାହ୍ୟତମ କକ୍ଷରେ ଗୋଟିଏ ଲେଖାଏଁ ଇଲେକ୍‌ଟ୍ରନ ଅଛି ।

Question 7.
ନିମ୍ନରେ ତିନୋଟି ମୌଳିକ A, B ଏବଂ C ର ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଅବସ୍ଥିତି ଦର୍ଶାଯାଇଛି ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-1
(a) A ଏକ ଧାତୁ କିମ୍ବା ଅଧାତୁ ଲେଖ ।
ଉ :
A ଅଧାତୁ ଅଟେ ।

(b) C, A ଠାରୁ ଅଧ‌ିକ ପ୍ରତିକ୍ରିୟାଶୀଳ କିମ୍ବା କମ୍ ପ୍ରତିକ୍ରିୟାଶୀଳ ?
ଉ :
C, A ଠାରୁ କମ୍ ପ୍ରତିକ୍ରିୟାଶୀଳ କାରଣ ଅଧାତୁ ଗ୍ରୁପ୍‌ର ଉପରୁ ତଳକୁ ପ୍ରତିକ୍ରିୟାଶୀଳତା ହ୍ରାସପାଏ ।

(c) C ର ଆକାର B ଠାରୁ ବଡ଼ କିମ୍ବା ଛୋଟ ?
ଉ :
C ର ଆକାର B ଠାରୁ ଛୋଟ, କାରଣ B ଓ C ଗୋଟିଏ ପର୍ଯ୍ୟାୟରେ ଅଛନ୍ତି । ଏକା ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ପରମାଣୁର ଆକାର କମେ ।

(d) A ମୌଳିକ ଦ୍ଵାରା କେଉଁ ପ୍ରକାର ଆୟନ ସୃଷ୍ଟି ହେବ, କ୍ୟାଟାୟନ କିମ୍ବା ଏନାୟନ ?
ଉ :
A ଏନାୟନ ଦିଏ, କାରଣ ଅଧାତୁ ବିଯୁକ୍ତାତ୍ମକ ଆୟନ ଦିଏ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 8.
ଅକ୍‌ସିଜେନ (ପରମାଣୁ କ୍ରମାଙ୍କ ୫) ଏବଂ ସଲ୍‌ଫର ( ପରମାଣୁ କ୍ରମାଙ୍କ 16) ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ 16ରେ ଅନ୍ତର୍ଭୁକ୍ତ । ଏହି ଦୁଇଟି ମୌଳିକର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା ଲେଖ । ଏ ଦୁଇଟି ମଧ୍ୟରୁ କେଉଁଟି ଅଧ୍ବକ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ ? କାହିଁକି ?
ଉ :
ଅକ୍‌ସିଜେନ୍‌ର ପରମାଣୁ କ୍ରମାଙ୍କ ଏବଂ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା 2, 6 |
ସଲଫରର ପରମାଣୁ କ୍ରମାଙ୍କ 16 ଏବଂ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା 2, 8, 6 ।
ଅକ୍‌ସିଜେନ୍, ସଲଫରଠାରୁ ଅଧିକ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ କାରଣ ଗ୍ରୁପର ଉପରୁ ତଳକୁ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ କ୍ରମଶଃ କମେ ।
ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଫ୍ଲୋରିନ୍ ସବୁଠାରୁ ଅଧ‌ିକ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ ମୌଳିକ ଏବଂ ସିଜିୟମ୍ (Cesium) ସବୁଠାରୁ କମ୍ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ ମୌଳିକ ଅଟେ ।

Question 9.
ଏକ ପରମାଣୁର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା, ଏହି ପରମାଣୁର ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଅବସ୍ଥିତି ସହିତ କ’ଣ ସମ୍ପର୍କ ରହିଛି ?
ଉ :
(i) ମୌଳିକର ଇଲେକ୍‌ଟ୍ରନର ସଂରଚନା ଓ ଅବସ୍ଥାନ ସହିତ ଘନିଷ୍ଠ ସମ୍ପର୍କ ରହିଛି ।
(ii) ଏକ ମୌଳିକର ବହିଃସ୍ଥ କକ୍ଷରେ ଥିବା ଇଲେକ୍‌ଟ୍ରନ ସଂଖ୍ୟା ଯେତେ ମୌଳିକଟି ସେହି ଗ୍ରୁପରେ ରହିଥାଏ ।
(iii) ମୌଳିକର ନ୍ୟୁକ୍ଲିୟସ୍ ଚାରିପାଖରେ ଥ‌ିବା କକ୍ଷ ସଂଖ୍ୟା ଯେତେ ମୌଳିକଟି ସେତିକି ନମ୍ବର ପର୍ଯ୍ୟାୟରେ ରହିଥାଏ ।

ତତାହରଣ:
(i) Li, Na, K, Rb ଓ Cs ଆଦି ମୌଳିକଗୁଡ଼ିକ ବାହ୍ୟ କକ୍ଷରେ ଗୋଟିଏ ଲେଖାଏଁ ଇଲେକ୍‌ଟ୍ରନ୍ ଥିବାରୁ ସେଗୁଡ଼ିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଗ୍ରୁପ୍ 1 ରେ ଅବସ୍ଥିତ ।
(ii) Na, Mg ଓ CI ଆଦି ମୌଳିକଗୁଡ଼ିକରେ ତିନୋଟି ଲେଖାଏଁ ପରିପୂର୍ଣ୍ଣ କକ୍ଷ ଥ‌ିବାରୁ ସେଗୁଡ଼ିକୁ ପର୍ଯ୍ୟାୟ ସାରଣୀର ତୃତୀୟ ପର୍ଯ୍ୟାୟରେ ଅବସ୍ଥିତ ।

Question 10.
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ କ୍ୟାଲ୍ ସିୟମ୍‌ (ପରମାଣୁ କ୍ରମାଙ୍କ 20 ) ର ଚତୁଃପାର୍ଶ୍ଵରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁ କ୍ରମାଙ୍କ ହେଉଛି (12, 19, 21 ଏବଂ 38 ) । ଏଗୁଡ଼ିକ ମଧ୍ୟରୁ କେଉଁ ମୌଳିକଗୁଡ଼ିକର ଭୌତିକ ଓ ରାସାୟନିକ ପ୍ରକୃତିରେ କ୍ୟାଲ୍‌ସିୟମ ସହିତ ସାମଞ୍ଜସ୍ୟ ରହିଛି ?
ଉ :
କ୍ୟାଲସିୟମର ପରମାଣୁ କ୍ରମାଙ୍କ = 20 ଏବଂ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 8, 2 ।
କ୍ୟାଲ୍‌ସିୟମ୍‌ର ଚତୁଃପାର୍ଶ୍ବରେ ଥିବା ମୌଳିକଗୁଡ଼ିକ
(i) ପରମାଣୁ କ୍ରମାଙ୍କ – 12
(ii) ପରମାଣୁ କ୍ରମାଙ୍କ = 19
(iii) ପରମାଣୁ କ୍ରମାଙ୍କ = 21
(iv) ପରମାଣୁ କ୍ରମାଙ୍କ = 38
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 2
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 8,1
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 8, 3
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 18, 8, 2
12 ଓ 38 ପରମାଣୁ କ୍ରମାଙ୍କ ଥ‌ିବା ଭୌତିକ ଓ ରାସାୟନିକ ପ୍ରକୃତି କ୍ୟାଲସିୟମ୍ ସହିତ ସାମଞ୍ଜସ୍ୟ ରହିଛି । ମୌଳିକର ବହିଃସ୍ଥ କକ୍ଷରେ 2ଟି ଇଲେକ୍‌ଟ୍ରନ୍ ଥ‌ିବାରୁ ଏହି ଦୁଇଟିର

Question 11.
ମେଣ୍ଡେଲିଫଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀ ଏବଂ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀ ମଧ୍ୟରେ ଥିବା ସାମଞ୍ଜସ୍ୟ ଏବଂ ପ୍ରଭେଦର ଏକ ତୁଳନାତ୍ମକ ବିବରଣୀ ଦିଅ ।
Answer:
ସାମଞସ୍ୟ:

ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀ

  • ଏହା ପର୍ଯ୍ୟାୟ ଓ ଗ୍ରୁପ୍‌କୁ ନେଇ ଗଠିତ ।
  • କେତେଗୁଡ଼ିଏ ମୌଳିକକୁ ନିର୍ଦ୍ଦିଷ୍ଟ ନିୟମରେ
  • 7ଟି ପର୍ଯ୍ୟାୟ ଅଛି ।

ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀ

  • ଏହା ପର୍ଯ୍ୟାୟ ଗ୍ରୁପ୍‌କୁ ନେଇ ଗଠିତ ।
  • କେତେଗୁଡ଼ିଏ ମୌଳିକକୁ ନିର୍ଦ୍ଦିଷ୍ଟ ନିୟମରେ
  • 7 ଟି ପର୍ଯ୍ୟାୟ ଅଛି ।

ପାର୍ଥକ୍ୟ:

ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀ

  • ମୌଳିକର ଗୁଣ ସେଗୁଡ଼ିକର ପାରମାଣବିକ ବସ୍ତୁତ୍ଵର |
  • ଏଥରେ 63ଟି ମୌଳିକ 7ଟି ପର୍ଯ୍ୟାୟ ଓ ୨ଟି ଶ୍ରେଣୀର ସ୍ଥାନିତ ହୋଇଛି ।
  • କେତେକ ସ୍ଥାନ ଖାଲିଥିଲା ।
  • ପରମାଣୁ ଗଠନ ସମ୍ପର୍କରେ ସାରଣୀ ଅଧିକ ସହାୟକ ହୋଇପାରିଲାନ|ହ |
  • ଏଥରେ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ ସମ୍ପର୍କରେ କୌଣସି ଧାରଣା ଦିଆଯାଇନଥିଲା
  • ସମସ୍ଥାନିକଗୁଡ଼ିକ ଯୋଗୁ ବହୁତ ତ୍ରୁଟି ଦେଖାଦେଲା ।

ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀ

  • ମୌଳିକର ଗୁଣ ସେଗୁଡ଼ିକର ପରମାଣୁ କ୍ରମାଙ୍କର ପର୍ଯ୍ୟାୟ ଫଳନ ।
  • ଏଥରେ 118 ଟି ମୌଳିକ 7 ଟି ପର୍ଯ୍ୟାୟ ଓ 18 ଟି ଶ୍ରେଣୀରେ ସ୍ଥାନିତ ହୋଇଛି ।
  • ନୂତନ ଭାବେ ଆବିଷ୍କୃତ ମୌଳିକ ମାନଙ୍କ ପାଇଁ ସ୍ଥାନ ଅଛି ।
  • ପର ମାଣୁ ଗଠନ ସମ୍ପର୍କରେ ଅଧିକ ସହାୟକ ହୋଇପାରିଲା ।
  • ଏଥରେ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍‌ଗୁଡ଼ିକ ସ୍ବତନ୍ତ୍ର ଶ୍ରେଣୀରେ ସ୍ଥାନିତ ହୋଇଇନ୍ତି
  • ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ସମସ୍ଥାନିକ ଦ୍ଵାରା ସୃଷ୍ଟି ହୋଇଥବା ତ୍ରୁଟି ମାର୍ଜିତ ହୋଇଛି ।

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

ପ୍ରଶ୍ନବଳୀ ଓ ଉତ୍ତର:

Question 1.
ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକରେ ଥ‌ିବା ସ୍ତମ୍ଭଗୁଡ଼ିକରେ ଡୁବେରିନରଙ୍କ ଟ୍ରାଇଏଡ୍ ସମୂହ ରହିଥ‌ିବା ତୁମେ ଲକ୍ଷ୍ୟ କରୁଛ କି ? ତୁଳନା କରି ଦେଖ ।
Answer:
ହଁ, ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକରେ ଥିବା Li, Na, K ଡୁବେରିନରଙ୍କ ଟ୍ରାଇଏଡ୍ ସମୂହରେ ଅଛି ।

Question 2.
ଡୁବେରିନରଙ୍କ ମୌଳିକର ଶ୍ରେଣୀବିଭାଗରେ କ’ଣ ସବୁ ଅସୁବିଧା ରହିଛି ?
Answer:

  • ସେ ସମୟରେ ଜଣାଥ‌ିବା ସମସ୍ତ ମୌଳିକକୁ ଡୁବେରିନର ଶ୍ରେଣୀ ବିଭାଗ କରିନଥିଲେ ।
  • ସେତେବେଳେ ଜଣାଥୁବା ମୌଳିକମାନଙ୍କ ମଧ୍ୟରୁ ଡୁବେରିନର କେବଳ ତିନୋଟି ଟ୍ରାଇଏଡ୍ ଚିହ୍ନଟ କରିପାରିଥିଲେ ।
    ଟ୍ରାଇଏଡ୍ ମାଧ୍ୟମରେ ଶ୍ରେଣୀ ବିଭାଗ ଗ୍ରହଣୀୟ ହୋଇନଥୁଲା

Question 3.
ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକ ନିୟମର କ’ଣ ସବୁ ଅସୁବିଧା ଥିଲା ?
Answer:

  • ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକ ନିୟମ କେବଳ କ୍ୟାଲସିୟମ ପର୍ଯ୍ୟନ୍ତ ପ୍ରଯୁଜ୍ୟ ଥିଲା ।
  • ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକ ସମୂହରେ ଅଳ୍ପ କେତେକ ମୌଳିକ ଗୁଣରେ ସାମଞ୍ଜସ୍ୟ ଥିଲା ।
  • ନିଉଲାଣ୍ଡଙ୍କ ଅଷ୍ଟକ ନିୟମରେ ଭିନ୍ନ ଭିନ୍ନ ଧର୍ମର ମୌଳିକଗୁଡ଼ିକୁ ଏକ ସ୍ବରତଳେ ସ୍ଥାନିତ କରାଯାଇଥିଲା ।
  • 56ଟି ମୌଳିକ ପରେ ଯେଉଁ ମୌଳିକ ଆବିଷ୍କୃତ ହେଲେ ସେମାନଙ୍କର ଧର୍ମଗୁଡ଼ିକ ଅଷ୍ଟକ ନିୟମରେ ଖାପଖାଇଲା ନାହିଁ ।

Question 4.
ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀକୁ ଉପଯୋଗ କରି ନିମ୍ନଲିଖୂ ମୌଳିକଗୁଡ଼ିକର ଅକ୍‌ସାଇଡ୍ ପାଇଁ ସଙ୍କେତଗୁଡ଼ିକ ଲେଖ । (Li, Mg, B, Si, Ca)

  • Li ମେଣ୍ଟେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ୍ Iରେ ଥ‌ିବାରୁ ମୌଳିକଗୁଡ଼ିକର ଅକ୍‌ସାଇଡ଼ର ସଂକେତ R2O। ତେଣୁ Liର ସଙ୍କେତ Li2O ।
  • Mg ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ୍ IIରେ ଥ‌ିବାରୁ ଏଥ‌ିରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଅକ୍‌ସାଇଡ୍‌ର RO | ତେଣୁ Mgର ସଙ୍କେତ MgO |
  • B ସାରଣୀରେ ଗ୍ରୁପ୍ IIIରେ ଅବସ୍ଥିତ ହୋଇଥ‌ିବାରୁ ଏଥ‌ିରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକରେ ଅକ୍‌ସାଇଡ଼ର ସଙ୍କେତ R2O3 । ତେଣୁ ‘B’ର ସଙ୍କେତ B2O3 |
  • Si ଗ୍ରୁପ୍ IVରେ ଥ‌ିବାରୁ ଏଥ‌ିରେ ଥିବା ମୌଳିକମାନଙ୍କର ଅକ୍‌ସାଇଡ଼ର ସଙ୍କେତ RO2 । ତେଣୁ Siର ସଙ୍କେତ SiO2
  • ‘Ca’ ଗ୍ରୁପ୍ Vରେ ଥିବାରୁ ଏଥ‌ିରେ ଥ‌ିବା ମୌଳିକମାନଙ୍କର ଅକ୍‌ସାଇଡ଼ର ସଙ୍କେତ RO । ତେଣୁ Caର ସଙ୍କେତ Ca0 |

Question 5.
ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀ ପ୍ରଣୀତ ହେବାପରେ ଆବିଷ୍କୃତ ହୋଇଥିବା ଯେ କୌଣସି ଦୁଇଟି ମୌଳିକର ନାମ ଲେଖ ।
Answer:

  • ସ୍କାଣ୍ଡିୟମ,
  • ଗାଲିୟମ୍

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 6.
ପର୍ଯ୍ୟାୟ ସାରଣୀ ପ୍ରସ୍ତୁତ କରିବା ପାଇଁ ମେଣ୍ଡେଲିଫ୍ କେଉଁ ସବୁ ମାନଦଣ୍ଡ (Criteria) ଉପଯୋଗ କରିଥିଲେ ?
Answer:

  • BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-2
  • ରାସାୟନିକ ଧର୍ମର ସାମଞ୍ଜସ୍ୟକୁ ବିଚାରକୁ ନେଇ ପର୍ଯ୍ୟାୟ ସାରଣୀ ପ୍ରସ୍ତୁତ କରିଥିଲେ ।
  • ମୌଳିକଗୁଡ଼ିକର ହାଇଡ୍ରାଇଡ୍ ଓ ଅକସାଇଡ଼କୁ ଉପଯୋଗକରି ପର୍ଯ୍ୟାୟ ସାରଣୀ ପ୍ରସ୍ତୁତ କରିବା ଅନ୍ୟ ଏକ ପ୍ରାଥମିକ ଧର୍ମ ।

Question 7.
ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍‌ଗୁଡ଼ିକୁ କାହିଁକି ଏକ ଅଲଗା ଗ୍ରୁପରେ ସ୍ଥାନିତ କରାଗଲା ?
Answer:
ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍‌ଗୁଡ଼ିକ ଅନ୍ୟ ମୌଳିକ ସହ ରାସାୟନିକ ପ୍ରତିକ୍ରିୟା କରୁନଥିବାରୁ ଏକ ଅଲଗା ଗ୍ରୁପ୍‌ରେ ସ୍ଥାନିତ

Question 8.
ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଥ‌ିବା ଅସଙ୍ଗତିଗୁଡ଼ିକୁ ଆଧୁନିକ ପର୍ଯ୍ୟାୟସାରଣୀ କିପରି ଦୂର କରିପାରିଲା ?
Answer:

  • ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଥିବା ତ୍ରୁଟିଗୁଡ଼ିକ ସୁଧାରିବା ପାଇଁ ମୌଳିକମାନଙ୍କୁ ସେମାନଙ୍କର ପାରମାଣବିକ କ୍ରମାଙ୍କର ବଦ୍ଧିତକ୍ରମ ଅନୁସାରେ ସଜାଯାଇ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀ ପ୍ରସ୍ତୁତ କରାଗଲା । ଫଳରେ ଆଇସୋଟୋପ୍‌ର ସ୍ଥାନ ସଠିକ୍ ହୋଇପାରିଲା ।
  • ମେଣ୍ଡେଲିସ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ କେତେକ ଖାଲିସ୍ଥାନ ଥିଲା । କିନ୍ତୁ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ତାହା ଦୂର କରାଯାଇପାରିଲା ।
  • ଲୌହ, କୋବାଲ୍‌ଟ୍ ଓ ନିକେଲ୍‌ର ସ୍ଥାନ ସଠିକ୍ ହୋଇପାରିଲା ।
  • ଓଜନିଆ ଓ ହାଲୁକା ମୌଳିକଗୁଡ଼ିକୁ ମଧ୍ୟ ସଠିକ୍ ଭାବରେ ସ୍ଥାନିତ କରାଗଲା ।
  • ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍‌ଗୁଡ଼ିକୁ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀର ଡାହାଣରେ ରଖାଯାଇଛି ।
  • ହାଇଡ୍ରୋଜେନ୍‌କୁ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ପ୍ରଥମ ଗ୍ରୁପ୍‌ରେ ରଖାଯାଇଛି କାରଣ ଏହା ଇଲେକ୍‌ଟ୍ରୋପଜେଟିଭ (Electropositive) ଅଟେ |
  • ଉପଧାତୁ ଗୁଡ଼ିକୁ ଧାତୁ ଓ ଅଧାତୁ ମଝିରେ ରଖାଯାଇଛି ।
  • ଛାନାଇଡ୍ ଓ ଆକ୍ଟିନାଇଡ୍‌କୁ ନିର୍ଦ୍ଦିଷ୍ଟ ସ୍ଥାନରେ ରଖାଯାଇଛି ।

କାର୍ଯ୍ୟାବଳୀ  (Activity):

କାର୍ଯ୍ୟାବଳୀ -1 (Activity-1)
କ୍ଷାରୀୟ ଧାତୁ ସହିତ ଏବଂ ହାଲୋଜେନ୍ ଗ୍ରୁପ୍ ସହିତ ସାମଞ୍ଜସ୍ୟକୁ ଦୃଷ୍ଟିରେ ରଖ୍ ମେଣ୍ଟେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ହାଇଡ୍ରୋଜେନ୍‌ର ଅବସ୍ଥିତି ସ୍ଥିର କର ।
Answer:
କ୍ଷାରୀୟ ଧାତୁ ସହିତ ସାମଞ୍ଜସ୍ୟକୁ ଦୃଷ୍ଟିରେ ରଖ୍ ହାଇଡ୍ରୋଜେନର ଅବସ୍ଥିତି:

  • ହାଇଡ୍ରୋଜେନର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା କ୍ଷାରୀୟ ଧାତୁ (Li, Na, K ଇତ୍ୟାଦି) ଗୁଡ଼ିକରେ ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା ସହିତ ସାମଞ୍ଜସ୍ୟ ରହିଛି ।
  • ଗ୍ରୁପ୍ (I) ରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଯୋଗ୍ୟତା-1 ।
  • ଗ୍ରୁପ୍ (I) ରେ ଥ‌ିବା କ୍ଷାରୀୟ ଧାତୁ ସହିତ ହାଇଡ୍ରୋଜେନ ବିଦ୍ୟୁତ୍ ଯୁକ୍ତାତ୍ମକ ଅଟେ ।
  • କ୍ଷାରୀୟ ଧାତୁ ଭଳି ଉଦ୍‌ଜାନ କାଟାୟନ ଦିଏ ।
  • କ୍ଷାରୀୟ ଧାତୁ ଭଳି ଉଦ୍‌ଜାନ ଅଧାତୁ ସହ ପ୍ରତିକ୍ରିୟା କରେ ।

ହାଲୋଜେନ୍ ଗ୍ରୁପ ସହିତ ସାମଞ୍ଜସ୍ୟକୁ ଦୃଷ୍ଟିରେ ରଖ୍ ହାଇଡ୍ରୋଜେନର ଅବସ୍ଥିତି:

  • ହାଲୋଜେନ୍ ଭଳି ଉଦ୍‌ଜାନର ଅଧାତବ ଗୁଣ ଅଛି ।
  • ହାଲୋଜେନ ଓ ଉଦ୍‌ଜାନ ତାପ ଓ ବିଦ୍ୟୁତ୍ କୁପରିବାହୀ ।
  • ହାଲୋଜେନ୍ ଓ ଉଦ୍‌ଜାନ ଦୁଇ ପରମାଣୁ ବିଶିଷ୍ଟ ଅଣୁ ।
  • ହାଲୋଜେନ୍ ଓ ଉଦ୍‌ଜାନ ପ୍ରତ୍ୟେକ ଗୋଟିଏ ଲେଖାଏଁ ଇଲେକ୍‌ଟ୍ରନ ଗ୍ରହଣ କରି ନିକଟତମ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍‌ର ସଂରଚନା ଧାରଣ କରନ୍ତି |
  • ହାଇଡ୍ରୋଜେନ୍ ଧାତୁ ଓ ଅଧାତୁ ସହିତ ପ୍ରତିକ୍ରିୟା କରି ସହସଂଯୋଜ୍ୟ ଯୌଗିକ ସୃଷ୍ଟି କରେ । ତେଣୁ ଉପରୋକ୍ତ ଆଲୋଚନାରୁ ଉଦଜାନକୁ କ୍ଷାରୀୟ ଧାତୁ କିମ୍ବା ହାଲୋଜେନ ସହିତ ନ ରଖ୍ ସ୍ୱତନ୍ତ୍ର ଗ୍ରୁପରେ ରଖାଯିବା ଉଚିତ ।

କାର୍ଯ୍ୟାବଳୀ -2 (Activity-2)
କ୍ଲୋରିନ୍‌ର ଦୁଇଟି ଆଇସୋଟୋପ୍ Cl – 35 ଏବଂ Cl -37 ବିଷୟରେ ବିଚାର କର ।

  • ସେମାନଙ୍କର ପାରମାଣବିକ ବସ୍ତୁତ୍ଵ ଭିନ୍ନ । ତେଣୁ ଏ ଦୁଇଟିକୁ ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ତୁମେ ଅଲଗା ଅଲଗା ସ୍ଥାନରେ ରଖୁ କି ?
  • ସେମାନଙ୍କର ରାସାୟନିକ ପ୍ରକୃତି ସମାନ । ଏ ଦୁଇଟିକୁ ଏକାସ୍ଥାନରେ ରଖୁବ କି ?

Answer:

  • Cl-35 ଏବଂ Cl-37କୁ ମେଣ୍ଡେଲିଫ୍‌ଙ୍କ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଅଲଗା ଅଲଗା ସ୍ଥାନରେ ରଖୁହେବ ନାହିଁ । ନହେଁ । କାରଣ ପାରମାଣବିକ କ୍ରମାଙ୍କ ମୌଳିକର ଶ୍ରେଣୀ ବିଭାଗରେ ଅଧିକ ଉପଯୋଗୀ କିନ୍ତୁ ପାରମାଣବିକ ବସ୍ତୁତ୍ୱ ନୁହେଁ ।
  • ହଁ, ଉଭୟ ଆଇସୋଟୋପ୍‌କୁ ଗୋଟିଏ ସ୍ଥାନରେ ରଖାଯିବ କାରଣ ସେଗୁଡ଼ିକର ରାସାୟନିକ ଧର୍ମ ଓ ପାରମାଣବିକ କ୍ରମାଙ୍କ ସମାନ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -3 (Activity-3)
(i) ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ କୋବାଲ୍ଟ ଓ ନିକେଲର ସ୍ଥାନ କିପରି ସ୍ଥିର କରାଗଲା ?
ଉ :
ପରମାଣୁ କ୍ରମାଙ୍କ ଅନୁସାରେ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ମୌଳିକଗୁଡ଼ିକୁ ସଜା ଯାଇଛି । କୋବାଲ୍ଟ (27), ନିକେଲ୍‌ (28) ପୂର୍ବରୁ ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ସଜାଯାଇଛି ।

(ii) ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ମୌଳିକର ଆଇସୋଟୋପ୍‌ଗୁଡ଼ିକ ସମ୍ବନ୍ଧରେ କିଛି ସୂଚନା ମିଳେ କି ?
ଉ :
ହଁ, ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ମୌଳିକର ଆଇସୋଟୋପ୍‌ଗୁଡ଼ିକ ସମ୍ବନ୍ଧରେ ସୂଚନା ମିଳେ । ଆଇସୋଟୋପ୍‌ଗୁଡ଼ିକର ସମାନ ପରମାଣୁ କ୍ରମାଙ୍କ ଥିବାରୁ ନିର୍ଦ୍ଦିଷ୍ଟ ଗ୍ରୁପ୍ ବା ପର୍ଯ୍ୟାୟରେ ରଖାଯାଇଛି ।

(iii) ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ହାଇଡ୍ରୋଜେନ ଓ ହିଲିୟମ ମଧ୍ୟରେ ପରମାଣୁ କ୍ରମାଙ୍କ 1.5 ଥ‌ିବା କୌଣସି ମୌଳିକ ରହିବା ସମ୍ଭବ କି ?
ଉ :
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ହାଇଡ୍ରୋଜେନ୍ ଓ ହିଲିୟମ୍ ମଧ୍ୟରେ ପରମାଣୁ କ୍ରମାଙ୍କ 1.5 ଥ‌ିବା କୌଣସି ମୌଳିକ ରହିବା ସମ୍ଭବ ନୁହେଁ । କାରଣ ପରମାଣୁ କ୍ରମାଙ୍କ ଏକ ଗଣନ ସଂଖ୍ୟା ।

(iv) ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ହାଇଡ୍ରୋଜେନ୍ କେଉଁ ସ୍ଥାନରେ ରହିପାରିବ ବୋଲି ତୁମେ ଭାବୁଛ ?
ଉ :
1 A
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀ ବିଷୟରେ କିଛି ତଥ୍ୟ :
(i) ପର୍ଯ୍ୟାୟ ସାରଣୀରେ 18ଟି ସ୍ତମ୍ଭ ଅଛି । ପ୍ରତି ସ୍ତମ୍ଭକୁ ଗ୍ରୁପ କହନ୍ତି । ଏହି ଗ୍ରୁପ୍ ଗୁଡ଼ିକ ବାମରୁ ଡାହାଣକୁ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 ଓ 18 ଚୂପେ ବିସୃତ |

(ii) ସାରଣୀର ପ୍ରତ୍ୟେକ ଧାଡ଼ିକୁ ପିରିଅଡ୍ ବା ପର୍ଯ୍ୟାୟ କୁହାଯାଏ । ଏଥିରେ ମୋଟ 7ଟି ପର୍ଯ୍ୟାୟ ଅଛି ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-3
ସେଗୁଡ଼ିକର ନାମକରଣ ଏକ ନିର୍ଦ୍ଦିଷ୍ଟ ପ୍ରଣାଳୀରେ କରାଯାଇଛି ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-4

(iii) ପ୍ରତି ପର୍ଯ୍ୟାୟର ବାମରୁ ଡାହାଣକୁ ଗଲେ ମୌଳିକଗୁଡ଼ିକର ଗୁଣରେ କ୍ରମାଗତ ପରିବର୍ତ୍ତନ ଲକ୍ଷ୍ୟ କରାଯାଏ । ପ୍ରତି ଗ୍ରୁପରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଅନୁରୂପ ଧର୍ମ ଅଛି ।

(iv) ପ୍ରତି ଗ୍ରୁପରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଅନୁରୂପ ଧର୍ମ ଅଛି ।

(v) ଗ୍ରୁପ୍ 1,2,13, 14, 15, 16, 17 ରେ ସ୍ଥାନିତ ମୌଳିକଗୁଡ଼ିକର ବାହ୍ୟତମ ସେଲ୍ 8 ରୁ କମ୍ ଇଲେକ୍‌ଟ୍ରନ ବହନ କରି ଅସମ୍ପୂର୍ଣ୍ଣ ଅଟେ । ତେଣୁ ସେଗୁଡ଼ିକୁ ନର୍ମାଲ ମୌଳିକ କହନ୍ତି ।

(vi) ଗ୍ରୁପ 18 ରେ ଥିବା ମୌଳିକଗୁଡ଼ିକୁ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ କହନ୍ତି । ହିଲିୟମକୁ ଛାଡ଼ି ଅନ୍ୟ ସମସ୍ତ ମୌଳିକର ବାହ୍ୟତମ କକ୍ଷରେ 8ଟି ଇଲେକ୍‌ଟ୍ରନ ଥାଏ, ମାତ୍ର ହିଲିୟମ୍‌ର ବାହ୍ୟତମ କକ୍ଷରେ ସର୍ବୋଚ୍ଚ 2ଟି ଇଲେକ୍‌ଟ୍ରନ ଥାଏ । ଏଗୁଡ଼ିକ ବିରଳ ଗ୍ୟାସ୍ (Rare gas) କହନ୍ତି ।

(vi) ଗ୍ରୁପ୍ 3, 4, 5, 6, 7, 8, 9, 10, 11, 12ରେ ଥ‌ିବା ମୌଳିକକୁ ଟ୍ରାନଜିସନ୍ ମୌଳିକ କହନ୍ତି ।

(viii) ଲାନ୍ଥାନାଇଡ୍ ଓ ଆକ୍‌ଟିନାଇଡ୍ ଶ୍ରେଣୀୟ ମୌଳିକକୁ ଅଲଗା ସ୍ଥାନ ଦିଆଯାଇଛି ।

ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ମୌଳିକଗୁଡ଼ିକର ସ୍ଥାନ (Position of Elements in the Modern Periodic Table):

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -4 (Activity-4)
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପ୍-2ର ପ୍ରଥମ ତିନୋଟି ମୌଳିକର ନାମ ଲେଖ ଏବଂ ସେହି ମୌଳିକଗୁଡ଼ିକର ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା ଲେଖ ।
Answer:
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-5
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନାରେ କିଛି ସାମଞ୍ଜସ୍ୟ ଦେଖିଲ କି ? ପ୍ରତି ମୌଳିକର ପରମାଣୁରେ କେତୋଟି ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ଅଛି ?
(i) ହଁ, ଏହିସବୁ ମୌଳିକର ପରମାଣୁର ବହିଃସ୍ଥ କକ୍ଷରେ ସମାନ ସଂଖ୍ୟକ ଇଲେକ୍‌ଟ୍ରନ୍ ଅଛି ବା ସମାନ ସଂଖ୍ୟକ ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ଅଛି । ପ୍ରତି ମୌଳିକର ପରମାଣୁରେ ଦୁଇଟି ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ୍‌ ଅଛି ।

(ii) ଯେକୌଣସି ଗୋଟିଏ ଗ୍ରୁପ୍‌ରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ସମାନ ସଂଖ୍ୟକ ଇଲେକ୍‌ଟ୍ରନ୍ ରହିଅଛି । ଉଦାହରଣସ୍ୱରୂପ, ଅକ୍‌ସିଜେନ (O) ଏବଂ ସଲଫର (S) ଗ୍ରୁପ୍ 16ରେ ରହିଛି । ଅକ୍‌ସିଜେନ୍‌ର ବାହ୍ୟତମ କକ୍ଷରେ 6ଟି ଇଲେକ୍‌ଟ୍ରନ୍ ଓ ସଲଫରର ବାହ୍ୟତମ କକ୍ଷରେ ଗୈ ଇଲେକ୍‌ଟ୍ରନ ଅଛି ।

(iii) ପର୍ଯ୍ୟାୟ ସାରଣୀର ଗ୍ରୁପଗୁଡ଼ିକ ଏକ ସମରୂପ ବାହ୍ୟକକ୍ଷ ଇଲେକଟ୍ରନ ସଂରଚନା (Identical Outer- shell electronic configuration) କୁ ପ୍ରକାଶ କରିଥା ନ୍ତି |

(iv) ହାଇଡ୍ରୋଜେନର ସ୍ଥାନ ଅସଙ୍ଗତି (anomaly) ପରିଲକ୍ଷିତ ହୁଏ । କାରଣ ଏହାକୁ ପର୍ଯ୍ୟାୟରେ ଗ୍ରୁପ୍-1 କିମ୍ବା ଗ୍ରୁପ୍ 17 ରେ ରଖାଯାଇପାରିବ ।

କାର୍ଯ୍ୟାବଳୀ -5 (Activity-5)

ଆଧୁନିକ ପର୍ଯ୍ୟାୟସାରଣୀର ତୃତୀୟ ପର୍ଯ୍ୟାୟରେ Na, Mg, Al, Si, P, S, CI ଏବଂ Ar ରହିଛି । ପ୍ରତ୍ୟେକର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନା ଲେଖ ।
ଉ :
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-6 BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-7
Na ପରମାଣୁରେ 1 ଟି, Mg ପରମାଣୁରେ 2ଟି, Al ପରମାଣୁରେ 3ଟି, Si ପରମାଣୁରେ 4ଟି, P ପରମାଣୁରେ 5ଟି, S ପରମାଣୁରେ ଟି, CI ପରମାଣୁରେ 7ଟି ଓ Ar ପରମାଣୁରେ ୫ଟି ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ୍ ରହିଛି । K ସେଲ୍‌ରେ 2ଟି ଏବଂ ଅନ୍ୟ ବହିଃସ୍ଥ କକ୍ଷଗୁଡ଼ିକରେ 8ଟି ଇଲେକ୍‌ଟ୍ରନ ରହିଲେ ସେଗୁଡ଼ିକୁ ନିଷ୍କ୍ରିୟ ପରମାଣୁ କୁହାଯାଏ ।
ପ୍ରତି ପରମାଣୁର କକ୍ଷ ସଂଖ୍ୟା କେତେ ?

ପ୍ରତି ପରମାଣୁର କକ୍ଷ ସଂଖ୍ୟା 3 ।
ଉ :
(a) ଗୋଟିଏ ପର୍ଯ୍ୟାୟରେ ଥ‌ିବା ମୌଳକଗୁଡ଼ିକରେ ପରମାଣୁରେ ସମାନସଂଖ୍ୟକ ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ନାହିଁ ।
(b) ପରମାଣୁଗୁଡ଼ିକରେ ସମାନ ସଂଖ୍ୟକ କକ୍ଷ ରହିଛି।
(c) ଗୋଟିଏ ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ମୌଳିକର ପରମାଣୁ କ୍ରମାଙ୍କ ଗୋଟିଏ ଲେଖାଏଁ ଏକକ ବଢ଼ିବା ସଙ୍ଗେ ସଙ୍ଗେ ଇଲେକ୍‌ଟ୍ରନ ସଂଖ୍ୟା ଗୋଟିଏ କରି ବଢ଼େ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -6 (Activity-6)

କୌଣସି ମୌଳିକର ଯୋଗ୍ୟତା ଏହାର ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂରଚନାରୁ କିପରି ନିର୍ଣ୍ଣୟ କରିବ ?
(i) ଯେଉଁ ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁର ବହିଃସ୍ଥ କକ୍ଷରେ ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ୍‌ ସଂଖ୍ୟା 1, 2, 3, 4 ଥବ । ତାହାହିଁ ସେହି ମୌଳିକ ଯୋଗ୍ୟତା ଅଟେ । କିନ୍ତୁ ହିଲିୟମ୍ କ୍ଷେତ୍ରରେ ତାହା ପ୍ରଯୁଜ୍ୟ ନୁହେଁ ।

(ii) ଯେଉଁ ସବୁ ମୌଳିକର ପରମାଣୁର ବହିଃସ୍ଥ କକ୍ଷରେ 4ରୁ ଅଧିକ ସଂଖ୍ୟକ ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ୍ ଥାଏ, ସେମାନଙ୍କ କ୍ଷେତ୍ରରେ ୫ରୁ ସେହି ଇଲେକ୍‌ଟ୍ରନ୍ ସଂଖ୍ୟାକୁ ବିୟୋଗ କରି ଯୋଗ୍ୟତା ନିର୍ଣ୍ଣୟ କରାଯାଏ ।

କ୍ୟାଲସିୟମର ପରମାଣୁ କ୍ରମାଙ୍କ 20 ଏବଂ ଅକ୍‌ସିଜେନର ପରମାଣୁ କ୍ରମାଙ୍କ 8 ହେଲେ ଏହି ମୌଳିକଗୁଡ଼ିକର ପୋକ୍ୟରା କେତେ ?
ଉ :
କ୍ୟାଲସିୟମର ପରମାଣୁ କ୍ରମାଙ୍କ = 20
କ୍ୟାଲସିୟମର ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 8, 8, 2
ବହିଃସ୍ଥ କକ୍ଷରେ 2ଟି ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ଥିବାରୁ କ୍ୟାଲସିୟମ୍‌ର ଯୋଗ୍ୟତା = 2
ଅକ୍‌ସିଜେନର ପରମାଣୁ କ୍ରମାଙ୍କ = 8
ଇଲେକ୍‌ଟ୍ରନ ସଂରଚନା = 2, 6
ବହିଃସ୍ଥ କକ୍ଷର ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ସଂଖ୍ୟା = 6
= 8 – 6 = 2

ପ୍ରଥମ ତିନୋଟି ପର୍ଯ୍ୟାୟରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଯୋଗ୍ୟତା ଲେଖ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-8
ଗୋଟିଏ ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ମୌଳିକଗୁଡ଼ିକର ଯୋଗ୍ୟତା କିପରି ପରିବର୍ତ୍ତିତ ହେଉଛି ?
ଉ :
ପ୍ରଥମେ ଯୋଗ୍ୟତା 4 ପର୍ଯ୍ୟନ୍ତ ବଢ଼େ, ପରେ 4 ରୁ () ପର୍ଯ୍ୟନ୍ତ କମିଥାଏ । ରୁ

ଗୋଟିଏ ଗ୍ରୁପରେ ଉପରୁ ତଳକୁ ମୌଳିକ ଗୁଡ଼ିକର ଯୋଗ୍ୟତାରେ କି ପରିବର୍ତ୍ତନ ଲକ୍ଷ୍ୟ କରୁଛ ?
ଉ :
ଗୋଟିଏ ଗ୍ରୁପରେ ଉପରୁ ତଳକୁ ଯୋଗ୍ୟତାର କୌଣସି ପରିବର୍ତ୍ତନ ହୁଏ ନାହିଁ ।

ପରମାଣୁର ଆକାର:
ବ୍ୟାସାର୍ଥକୁ ସୂଚାଏ । ଏକ ପରମାଣୁର ନ୍ୟୁକ୍ଲିୟସର କେନ୍ଦ୍ରବିନ୍ଦୁ ଓ ସେହି ପରମାଣୁର ଆକାର ବାହ୍ୟତମ କକ୍ଷ ମଧ୍ୟରେ ଥିବା ଦୂରତାକୁ ପରମାଣୁର ବ୍ୟାସାର୍ଷ କହନ୍ତି । ଏହାକୁ ପିକୋମିଟର ଏକକରେ ମପାଯାଏ ।
(1 ପିକୋମିଟର = 10-12 ମିଟର ।)

କାର୍ଯ୍ୟାବଳୀ -7 (Activity-7)

ପର୍ଯ୍ୟାୟ ସାରଣୀର ଦ୍ବିତୀୟ ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ରହିଥ‌ିବା କେତେକ ମୌଳିକ :
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-9
ବାମରୁ ଡାହାଣକୁ ଆକାର କିପରି ବଦଳୁଛି ?
ଉ :
ପର୍ଯ୍ୟାୟର ବାମରୁ ଡାହାଣକୁ ଗଲେ ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁର ବ୍ୟାସାର୍ଦ୍ଧ କମେ । ତେଣୁ ପରମାଣୁର ଆକାର କମିଯାଏ ।

ଏହି ପର୍ଯ୍ୟାୟରେ କେଉଁ ମୌଳିକର ପରମାଣୁ ଆକାର ସବୁଠାରୁ ବଡ଼ ଏବଂ କେଉଁ ମୌଳିକର ପରମାଣୁର ଆକାର ସବୁଠାରୁ ସାନ ?
ଉ :
(i) ଏହି ପର୍ଯ୍ୟାୟରେ Liର ପରମାଣୁ ଆକାର ସବୁଠାରୁ ବଡ଼ ଏବଂ ଠାର ପରମାଣୁ ଆକାର ସବୁଠାରୁ ଛୋଟ

(ii) ଡାହାଣକୁ ପରମାଣୁ କ୍ରମାଙ୍କ ବଢ଼ିଲେ ବାହ୍ୟତମ କକ୍ଷରେ ଇଲେକ୍‌ଟ୍ରନ ସଂଖ୍ୟା ବଢ଼େ ଏବଂ ନ୍ୟୁକ୍ଲିୟସ୍‌ର ଯୁକ୍ତଚାର୍ଜ ମଧ୍ୟ ବଢ଼େ । ନ୍ୟୁକ୍ଲିୟସ୍ତର ଏହି ବର୍ଷିତ ଯୁକ୍ତଚାର୍ଜ ଇଲେକ୍‌ଟ୍ରନକୁ ନିଜ ଆଡ଼କୁ ଟାଣେ ଫଳରେ ଇଲେକ୍‌ଟ୍ରନ୍‌ ନ୍ୟୁକ୍ଲିୟସର ନିକଟତର ହୁଏ । ତେଣୁ ପରମାଣୁର ଆକାର କମେ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 5 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -8 (Activity-8)

ପର୍ଯ୍ୟାୟ ସାରଣୀର ପ୍ରଥମ ଗ୍ରୁପ୍‌ର ଉପରୁ ତଳକୁ ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁ ବ୍ୟାସାର୍ଦ୍ଧ ତଳେ ଦିଆଯାଇଛି ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-10
ଉପର ତଳ ଗ୍ରୁପକ୍ରମରେ ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁ ବ୍ୟାସାର୍କ କିପରି ଭାବରେ ବଦଳୁଛି ?
ଉ :
ଗ୍ରୁପ୍‌ରେ ଉପରୁ ତଳକୁ ପରମାଣୁର ଆକାର ବୃଦ୍ଧି ଘଟେ । କାରଣ, ଗ୍ରୁପରେ ଉପରୁ ତଳକୁ ଗଲେ ମୌଳିକଗୁଡ଼ିକର ପରମାଣୁର ଗୋଟିଏ ନୂଆ କକ୍ଷ ଯୋଗ ହୋଇଚାଲେ । ବାହ୍ୟତ କକ୍ଷ ଓ ନ୍ୟୁକ୍ଲିୟସ ମଧ୍ୟରେ ଦୂରତା ବୃଦ୍ଧି ଘଟେ, ଫଳରେ ପରମାଣୁ ଆକାର ବଢ଼େ ।

ଏହି ଗ୍ରୁପରେ କେଉଁ ମୌଳିକର ପରମାଣୁ ଆକାର ସବୁଠାରୁ ବଡ଼ ଏବଂ କେଉଁ ମୌଳିକର ପରମାଣୁ ଆକାର ସବୁଠାରୁ ଛୋଟ ?
ଉ :
ଏହି ଗ୍ରୁପ୍‌ରେ ପରମାଣୁର ଆକାର ସବୁଠାରୁ ଛୋଟ ଲିଥ୍ୟମ୍ (Li)ର ଏବଂ ସବୁଠାରୁ ବଡ଼ ସିଜିୟମ୍ (Cs) ର

କାର୍ଯ୍ୟାବଳୀ -୨ (Activity-9)
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀର ତୃତୀୟ ପର୍ଯ୍ୟାୟରେ ଥ‌ିବା ଧାତୁ ଓ ଅଧାତୁର ଅଲଗା ତାଲିକା କର ।
ଉ :
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-12
ପର୍ଯ୍ୟାୟ ସାରଣୀର କେଉଁ ପାର୍ଶ୍ଵରେ ଧାତୁଗୁଡ଼ିକ ରହିଛି ?
ଉ : ଚାମ ପାର୍ଶରେ

ପର୍ଯ୍ୟାୟ ସାରଣୀର କେଉଁ ପାର୍ଶ୍ଵରେ ଅଧାତୁ ଗୁଡ଼ିକ ରହିଛି ?
ଉ :
ଦକ୍ଷିଣ ପାର୍ଶ୍ଵରେ
(i) ଯେଉଁ ମୌଳିକଗୁଡ଼ିକ ଧାତୁ ଓ ଅଧାତୁର ଗୁଣ ପ୍ରଦର୍ଶନ କରନ୍ତି, ସେହି ମୌଳିକଗୁଡ଼ିକୁ ଉପଧାତୁ ବା ଅର୍ଦ୍ଧଧାତୁ କୁହାଯାଏ ।
ଆଧୁନିକ ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ଏକ ବଙ୍କା-ଟଙ୍କା ରେଖା ଅଧାତୁଠାରୁ ଧାତୁକୁ ପୃଥକ୍ କରିଛି । ଏହି ବଙ୍କା- ଟଙ୍କା ରେଖା ନିକଟବର୍ତ୍ତୀ 7 ଟି ମୌଳିକ; ଯଥା –
(ii) ବୋରନ୍, ସିଲିକନ୍, ଜର୍ମାନିୟମ, ଆର୍ସେନିକ୍, ଆଣ୍ଟିମୋନି, ଟେଲୁରିୟମ୍, ପୋଲନିୟମ ଉପଧାତୁ ରହିଛି ।
(iii) ଧାତୁଗୁଡ଼ିକର ଇଲେକ୍‌ଟ୍ରନ ତ୍ୟାଗ କରିବାର ପ୍ରବୃତ୍ତି ଥାଏ, ଅର୍ଥାତ୍ ସେଗୁଡ଼ିକର ପ୍ରକୃତି ବିଦ୍ୟୁତ୍ ଯୁକ୍ତାତ୍ମକ (Electropositive) ।

କାର୍ଯ୍ୟାବଳୀ -10 (Activity-10)
ଗୋଟିଏ ଗ୍ରୁପ୍‌ରେ ଉପରୁ ତଳକୁ ପରମାଣୁର ଇଲେକ୍‌ଟ୍ରନ୍‌ ତ୍ୟାଗ କରିବା ପ୍ରବୃତ୍ତି କିପରି ବଦଳେ ଚିନ୍ତା କର ।
ଉ :
ଗ୍ରୁପରେ ଉପରୁ ତଳକୁ ମୌଳିକଗୁଡ଼ିକର ଇଲେକ୍‌ଟ୍ରନ ତ୍ୟାଗ କରିବା ପ୍ରବୃତ୍ତି ବଢ଼େ ।

ସେହିପରି, ଗୋଟିଏ ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ଏହି ପ୍ରବୃତ୍ତି କିପରି ବଦଳେ ?
ଉ :
ମୌଳିକଗୁଡ଼ିକ ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ଇଲେକଟ୍ରନ ତ୍ୟାଗ କରିବା ପ୍ରବୃତ୍ତି କମେ ।
(iv) ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ବାମରୁ ଡାହାଣକୁ ପରମାଣୁଗୁଡ଼ିକର ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ, ଉପରେ କାର୍ଯ୍ୟକାରୀ ହେଉଥ‌ିବା ନ୍ୟୁକ୍ଲିୟ ଚାର୍ଜ ବଢ଼ିଚାଲେ । ତେଣୁ ଇଲେକ୍‌ଟ୍ରନ୍‌ ତ୍ୟାଗ କରିବା ପ୍ରବୃତ୍ତି କମିଯାଏ ।

(v) ଗୋଟିଏ ଗ୍ରୁପ୍‌ରେ ଉପରୁ ତଳକୁ ସଂଯୋଜକ ଇଲେକ୍‌ଟ୍ରନ ଦ୍ଵାରା ଅନୁଭୂତ ପ୍ରକୃତ ନ୍ୟୁକ୍ଲିୟ ଚାର୍ଜ କମି କମି ଯାଏ, କାରଣ ବାହ୍ୟତମ ଇଲେକ୍‌ଟ୍ରନ ଗୁଡ଼ିକ ନ୍ୟୁକ୍ଲିୟସଠାରୁ ଅଧ୍ଵତର ଦୂରରେ ରହିଥାଏ । ତେଣୁ ଏହି

(vi) ଏହି କାରଣରୁ ପର୍ଯ୍ୟାୟରେ ଥ‌ିବା ମୌଳିକଗୁଡ଼ିକର ଧାତବ ପ୍ରକୃତି ବାମରୁ ଡାହାଣକୁ କମିଯାଏ ଏବଂ ଏକା ଗ୍ରୁପ୍‌ରେ ଧାତବ ପ୍ରକୃତି ଉପରୁ ତଳକୁ ବୃଦ୍ଧିପାଏ।

(vi) ଅଧାତୁ ଇଲେକ୍‌ଟ୍ରନ ଗ୍ରହଣକରି ବିଯୁକ୍ତାତ୍ମକ ଆୟନରେ ପରିଣତ ହୁଏ । ଅଧାତୁଗୁଡ଼ିକ ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକ (Electronegative) ଅଟନ୍ତି ।

(vii) ମୌଳିକଗୁଡ଼ିକଦ୍ୱାରା ସୃଷ୍ଟି ଅକ୍‌ସାଇଡ୍ ଯଥା ଧାତବ ଅକ୍‌ସାଇଡଗୁଡ଼ିକ କ୍ଷାରୀୟ ଓ ଅଧାତବ ଅକସାଇଗୁଡ଼ିକ ଅମ୍ଳୀୟ ।

କାର୍ଯ୍ୟାବଳୀ -11 (Activity-11)

ପର୍ଯ୍ୟାୟରେ ବାମରୁ ଡାହାଣକୁ ଇଲେକ୍‌ଟ୍ର ଗ୍ରହଣ କରିବା ପ୍ରବୃତ୍ତି କିପରି ବଦଳେ ?
ଉ :
ଇଲେକ୍‌ଟ୍ରନ ଗ୍ରହଣ କରିବା ପ୍ରବୃତ୍ତି ପର୍ଯ୍ୟାୟ ସାରଣୀରେ ବାମରୁ ଡାହାଣକୁ 17ତମ ଗ୍ରୁପ୍ ପର୍ଯ୍ୟନ୍ତ ବଢ଼େ, କିନ୍ତୁ 18 ତମ ଗ୍ରୁପ୍‌ରେ ଆଦୌ ନଥାଏ (ଶୂନ ହୋଇଥାଏ) ।

ଗ୍ରୁପ୍‌ର ଉପରୁ ତଳକୁ ଇଲେକ୍‌ଟ୍ରନ୍‌ ଗ୍ରହଣ କରିବା ପ୍ରବୃତ୍ତି କିପରି ବଦଳୁଛି ?
ଉ :
ଗ୍ରୁପ୍‌ର ଉପରୁ ତଳକୁ ଇଲେକ୍‌ଟ୍ରନ ଗ୍ରହଣ କରିବାର ପ୍ରବୃତ୍ତି କମିଯାଏ ।
(ix) ବିଦ୍ୟୁତ୍ ବିଯୁକ୍ତାତ୍ମକତାର କ୍ରମଧାରା ଅନୁସାରେ ପର୍ଯ୍ୟାୟ ସାରଣୀର ଦକ୍ଷିଣ ପାର୍ଶ୍ଵର ଉପର ଆଡ଼କୁ ଅଧାତୁ ଗୁଡ଼ିକ ଦେଖାଯାଏ ।

(x) ପର୍ଯ୍ୟାୟ ସାରଣୀର ବାମରୁ ଡାହାଣକୁ ଗଲେ ମୌଳିକଗୁଡ଼ିକର ଅକ୍‌ସାଇଡ୍ ସ୍ଥାନରେ କ୍ଷାରୀୟ ଧର୍ମ କ୍ରମାଗତ ପରିବର୍ତ୍ତନ ହୋଇ ଶେଷରେ ଅମ୍ଳୀୟ ଧର୍ମ ପ୍ରାପ୍ତ ହୁଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 5 img-11

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

Odisha State Board Elements of Mathematics Class 12 Solutions CHSE Odisha Chapter 11 Differential Equations Ex 11(a) Textbook Exercise Questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Exercise 11(a)

Question 1.
Determine the order and degree of each of the following differential equations.
(i) y sec2 x dx + tan x dy = 0
Solution:
Order: 1, Degree: 1

(ii) \(\left(\frac{d y}{d x}\right)^4\) + y5 = \(\frac{d^3 y}{d x^3}\)
Solution:
Order: 3, Degree: 1

(iii) a\(\frac{d^2 y}{d x^2}\) = \(\left\{1+\left(\frac{d y}{d x}\right)^2\right\}^{\frac{3}{2}}\)
Solution:
Order: 2, Degree: 2

(iv) tan-1\(\sqrt{\frac{d y}{d x}}\) = x
Solution:
Order: 1, Degree: 1

(v) ln\(\left(\frac{d^2 y}{d x^2}\right)\) = y
Solution:
Order: 2, Degree: 1

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(vi) \(\frac{\frac{d y}{d t}}{y+\frac{d y}{d t}}\) = \(\frac{y t}{d y}\)
Solution:
Order: 1, Degree: 2

(vii) \(\frac{d^2 y}{d u^2}\) = \(\frac{3 y+\frac{d y}{d u}}{\sqrt{\frac{d^2 y}{d u^2}}}\)
Solution:
Order: 2, Degree: 3

(viii) \(e^{\frac{d z}{d x}}\) = x2
Solution:
Order: 1, Degree: 1

Question 2.
Form the differential equation by eliminating the arbitrary constants in each of the following cases.
(i) y = A sec x
Solution:
y = A sec x
Then \(\frac{d y}{d x}\) = A sec x tan x = y tan x

(ii) y = C tan-1 x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(2)

(iii) y = Aet + Be2t
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(3)

(iv) y = Ax2 + Bx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(4)

(v) y = -acos x + b sin x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(5)

(vi) y = a sin-1 x + b cos-1 x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(6)

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(vii) y = at + bet
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(7)

(viii) y = a sin t + bet
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(8)

(ix) ax2 + by = 1
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.2(9)

Question 3.
Find the general solution ofthe following differential equations.
(i) \(\frac{d y}{d x}\) = \(\frac{e^{2 x}+1}{e^x}\)
Solution:
\(\frac{d y}{d x}\) = \(\frac{e^{2 x}+1}{e^x}\)
⇒ y = ∫(ex + e-x) dx = ex – e-x + C

(ii) \(\frac{d y}{d x}\) = x cos x
Solution:
\(\frac{d y}{d x}\) = x cos x
⇒ y = ∫x cos x dx
= x . sin x – ∫sin x dx – x sin x + cos x + C

(iii) \(\frac{d y}{d x}\) = t5 log t
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.3(3)

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(iv) \(\frac{d y}{d x}\) = 3t2 + 4t + sec2 t
Solution:
\(\frac{d y}{d x}\) = 3t2 + 4t + sec2 t
⇒ y = t3 + 2t2 + tan t + C

(v) \(\frac{d y}{d x}\) = \(\frac{1}{x^2-7 x+12}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.3(5)

(vi) \(\frac{d y}{d u}\) = \(\frac{u+1}{\sqrt{3 u^2+6 u+5}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.3(6)

(vii) (x2 + 3x + 2) dy – dx = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.3(7)

(viii) \(\frac{d y}{d t}\) = \(\frac{\sin ^{-1} t e^{\sin ^{-1} t}}{\sqrt{1-t^2}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.3(8)

Question 4.
Solve the following differential equations.
(i) \(\frac{d y}{d x}\) = y + 2
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.4(1)

(ii) \(\frac{d y}{d t}\) = \(\sqrt{1-y^2}\)
Solution:
\(\frac{d y}{d t}\) = \(\sqrt{1-y^2}\)
⇒ \(\frac{d y}{\sqrt{1-y^2}}\) = dt
⇒ sin-1 y = t + C

(iii) \(\frac{d y}{d z}\) = sec y
Solution:
\(\frac{d y}{d z}\) = sec y
⇒ cos y dy = dz
⇒ sin y = z + C

(iv) \(\frac{d y}{d x}\) = ey
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.4(4)

(v) \(\frac{d y}{d x}\) = y2 + 2y
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.4(5)

(vi) dy + (y2 + 1) dx = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.4(6)

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(vii) \(\frac{d y}{d x}\) + \(\frac{e^y}{y}\) = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.4(7)

(viii) dx + cot x dt = 0
Solution:
dx + cot x dt = 0
⇒ tan x dx + dt = 0
⇒ ∫tan x dx + ∫dt = C1
⇒ In sec x + t = C1
⇒ In sec x = C1 – t
⇒ sec x = \(e^{C_1}\) . e-t
⇒ cos x = \(e^{-C_1}\) . et
⇒ cos x = Cet where C = \(e^{-C_1}\)

Question 5.
Obtain the general solution of the following differential equations.
(i) \(\frac{d y}{d x}\) = (x2 + 1) (y2 + 1)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(1)

(ii) \(\frac{d y}{d t}\) = e2t+3y
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(2)
⇒ 2e-3y + 3e2t + 6C1 = 0
⇒ 2e-3y + 3e2t = C
where C = -6C1

(iii) \(\frac{d y}{d z}\) = \(\frac{\sqrt{1-y^2}}{\sqrt{1-z^2}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(3)

(iv) \(\frac{d y}{d z}\) = \(\frac{x \log x}{3 y^2+4 y}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(4)

(v) x2\(\sqrt{y^2+3}\) dx + y\(\sqrt{x^3+1}\) dy = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(5)

(vi) tan y dx + cot x dy = 0
Solution:
tan y dx + cot x dy = 0
⇒ tan x . dx + cot y dy = 0
⇒ ∫tan x dx + ∫cot y dy = 0
⇒ -ln cos x + ln siny = ln C
⇒ ln\(\frac{\sin y}{\cos x}\) = ln C
⇒ \(\frac{\sin y}{\cos x}\) = C
⇒ sin y = C cos x

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(vii) (x2 + 7x + 12) dy + (y2 – 6y + 5) dx = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.5(7)

(viii) y dy + e-y x sin x dx = 0
Solution:
y dy + e-y x sin x dx = 0
⇒ yey dy + x sin x dx = 0
⇒ ∫yey dy + ∫x sin dx = C
[Integrating by parts.
⇒ yey – ∫ey dy + x(-cos x) – ∫(-cos x) dx = C
⇒ yey – ey – x cos x + sin x = C
⇒ (y – 1) ey – x cos x + sin x = C

Question 6.
Solve the following second order equations.
(i) \(\frac{d^2 y}{d x^2}\) = 12x2 + 2x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.6(1)

(ii) \(\frac{d^2 y}{d t^2}\) =e2t +e-t
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.6(2)

(iii) \(\frac{d^2 y}{d \vartheta^2}\) = -sin υ + cos υ + sec2 υ
Solution:
\(\frac{d^2 y}{d \vartheta^2}\) = -sin υ + cos υ + sec2 υ
Integrating we get
\(\frac{d y}{d υ}\) = ∫sin υ dυ + ∫cos υ dυ + ∫sec2 υ dυ
= cos υ + sin υ + tan υ + A
Again integratingwe get
y = ∫(cos υ + sin υ + tan υ + A)dυ + B
where A, B are arbritrary constants.
⇒ y = sin υ – cos υ + ln |sec υ| + A.υ. + B

(iv) cosec x \(\frac{d^2 y}{d x^2}\) = x
Solution:
cosec x \(\frac{d^2 y}{d x^2}\) = x
\(\frac{d^2 y}{d x^2}\) = x sin x
Integrating we get
\(\frac{d y}{d x}\) = ∫x sin x dx + A
= x . (-cos x) – ∫(-cos x) dx + A
= -x cos x + ∫cos x dx + A
= -x cos x + sin x + A
Again integrating we get
y = -∫x cos x dx + ∫sin x + ∫A dx + B
= -{x sin x -∫1 . sin x dx} – cos x + Ax + B
= -x sin x – 2cos x + Ax + B

(v) x2\(\frac{d^2 y}{d x^2}\) + 2 = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.6(5)

(vi) sec x \(\frac{d^2 y}{d x^2}\) = sec 3x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.6(6)

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(vii) \(\frac{d^2 y}{d x^2}\) = sec2 x + cos2 x
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.6(7)

(viii) e-x\(\frac{d^2 y}{d x^2}\) = x
Solution:
ex\(\frac{d^2 y}{d x^2}\) = x
⇒ \(\frac{d^2 y}{d x^2}\) = xex
Integrating we get
\(\frac{d y}{d x}\) = ∫xex dx = ∫ex dx + Ax + B
= xex – ex – ex + Ax + B
= (x – 2)ex + Ax + B

Question 7.
Find the particular solutions of the following equations subject to the given conditions.
(i) \(\frac{d y}{d x}\) = cos x, given that y = 2 when x = 0.
Solution:
\(\frac{d y}{d x}\) = cos x
Integrating we get
y = ∫cos x dx = sin x + C
Given that when x = 0, y = 2
So 2 = C
∴ The particular solution is y = sin x + 2

(ii) \(\frac{d y}{d t}\) = cos2 y subject to y = \(\frac{\pi}{4}\) when t = 0.
Solution:
\(\frac{d y}{d t}\) = cos2 y
⇒ sec2 y dy = dt
∫sec2 dy = ∫dt
⇒ tan y = t + C
When t = 0, y = \(\frac{\pi}{4}\)
So tan \(\frac{\pi}{4}\) = C ⇒ C = 1
∴ The particular solution is tan y = t + 1

(iii) \(\frac{d y}{d x}\) = \(\frac{1+y^2}{1+x^2}\) given that y = √3 when x = 1.
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.7(3)

(iv) \(\frac{d^2 y}{d x^2}\) = 6x given that y = 1 and \(\frac{d y}{d x}\) = 2 when x = 0.
Solution:
\(\frac{d^2 y}{d x^2}\) = 6x ⇒ \(\frac{d y}{d x}\) = 3x2 + 2
When x = 0, \(\frac{d y}{d x}\) = 2
So 2 = A
∴ \(\frac{d y}{d x}\) = 3x2 + 2
Again integrating we get
y = x3 + 2x + B
When x = 0, y = 1
So B = 1.
∴ The particular solution is y = x3 + 2x + 1

Question 8.
(i) Solve : \(\frac{d y}{d x}\) = sec (x + y)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.8(1)

(ii) Solve : \(\frac{d y}{d x}\) = sin(x + y) + cos(x + y)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.8(2)

CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a)

(iii) Solve : \(\frac{d y}{d x}\) = cos (x + y)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.8(3)

(iv) Solve : \(\frac{d y}{d x}\) + 1 = ex+y
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(a) Q.8(4)

CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d)

Odisha State Board CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Textbook Exercise Questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Exercise 12(d)

Question 1.
Each question given below has four possible answers out of which only one is correct. Choose the correct one.
(i) \(\vec{a} \cdot \vec{b} \times \vec{a}\) = _______.
(a) \(\overrightarrow{0}\)
(b) 0
(c) 1
(d) \(\vec{a}^2 \vec{b}\)
Solution:
\(\vec{a} \cdot(\vec{b} \times \vec{a})\) = \((\vec{b} \times \vec{a}) \cdot \vec{a}\)
= \(\vec{b} \cdot(\vec{a} \times \vec{a})\) = \(\vec{b} \cdot \overrightarrow{0}\)
= 0 [∴ Dot product is commutative and in the scalar triple product the dot and cross can be interchanged.]

(ii) \((-\vec{a}) \cdot \vec{b} \times(-\vec{c}))\) = _______.
(a) \(\vec{a} \times \vec{b} \cdot \vec{c}\)
(b) \(-\vec{a} \cdot(\vec{b} \times \vec{c})\)
(c) \(\vec{a} \times \vec{c} \cdot \vec{b}\)
(d) \(\vec{a} \cdot(\vec{c} \times \vec{b})\)
Solution:
\((-\vec{a}) \cdot \vec{b} \times(-\vec{c})\) = \(\vec{a} \cdot(\vec{b} \times \vec{c})\)

(iii) For the non-zero vectors \(\vec{a}, \vec{b}\) and \(\vec{c}, \vec{a} \cdot(\vec{b} \times \vec{c})\) = 0 if
(a) \(\vec{b} \perp \vec{c}\)
(b) \(\vec{a} \perp \vec{b}\)
(c) \(\vec{a} \| \vec{c}\)
(d) \(\vec{a} \perp \vec{c}\)
Solution:
\(\vec{a} \cdot(\vec{b} \times \vec{c})\) = \((\vec{a} \times \vec{b}) \cdot \vec{c}\)
\(\vec{c} \perp(\overrightarrow{\mathrm{a}} \times \overrightarrow{\mathrm{b}})\)
but \(\vec{a} \times \vec{b}\) is perpendicular to \(\vec{a}\) and \(\vec{b}\)
∴ \(\vec{a} \| \vec{b}\)

CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d)

Question 2.
Find the scalar triple product \(\vec{b} \cdot(\vec{c} \times \vec{a})\) where \(\vec{a}\), \(\vec{b}\) and \(\vec{c}\) are respectively.
(i) î + ĵ, î – ĵ, 5î + 2ĵ + 3k̂
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.2(1)
= 1 (0 – 3) + 1 (0 – 3) + 0 (5 – 2)
= 3 – 3 = -6

(ii) 5î – ĵ + 4k̂, 2î + 3ĵ + 5k̂, 5î – 2ĵ
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.2(2)
= 5 (18 + 10) + 1 (12 – 25) + 4 (- 4 – 15)
= 140 – 13 – 76 = 140 – 89 = 51

Question 3.
Find the volume of the parallelopiped whose sides are given by the vectors.
(i) î + ĵ + k̂, k̂, 3î – ĵ + 2k̂
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.3(1)
= 1 (0 + 1) – 1 (0 – 3) + 1 (0 – 0)
= 1 + 3 = 4 cube units.

(ii) (1, 0, 0), (0, 1, 0), (0, 0, 1).
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.3(2)

Question 4.
Show that the following vector are co-planar
(i) î – 2ĵ + 2k̂, 3î + 4ĵ + 5k̂, -2î + 4ĵ – 4k̂
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.4(1)

(ii) î + 2ĵ + 3k̂, -2î – 4ĵ + 5k̂, 3î + 6
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.4(2)

Question 5.
Find the value of λ so that the three vectors are co-planar.
(i) î + 2ĵ + 3k̂, 4î + ĵ + λk̂ and λî – 4ĵ + k̂
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.5(1)

(ii) (2, -1, 1), (1, 2, -3) and (3, λ, 5)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.5(2)
⇒ 2 (10 + 3λ) + 1 (5 + 9) + 1 (λ – 6) = 0
⇒ 20 + 6λ +14 + λ – 6 = 0
⇒ 7λ + 28 = 0 ⇒ λ = -4

CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d)

Question 6.
If \(\vec{a}\), \(\vec{b}\) and \(\vec{c}\) mutually perpendiculars, show that \([\vec{a} .(\vec{b} \times \vec{c})]^2\) = a2b2c2
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.6

Question 7.
Show that \([\vec{a}+\vec{b} \vec{b}+\vec{c} \vec{c}+\vec{a}]\) = 2\([\vec{a} \vec{b} \vec{c}]\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.7

Question 8.
Prove that \([\vec{a} \times \vec{b} \vec{b} \times \vec{c} \vec{c} \times \vec{a}]\) = \([\vec{a} \vec{b} \vec{c}]^2\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.8

Question 9.
For \(\vec{a}\) = î + ĵ, \(\vec{b}\) = -î + 2k̂, \(\vec{c}\) = ĵ + k̂ obtain \(\vec{a} \times(\vec{b} \times \vec{c})\) and also verify the formula \(\vec{a} \times(\vec{b} \times \vec{c})\) = \((\vec{a} \cdot \vec{c}) \vec{b}-(\vec{a} \cdot \vec{b}) \vec{c}\).
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.9

CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d)

Question 10.
Prove that \(\vec{a} \times(\vec{b} \times \vec{c})+\vec{b} \times(\vec{c} \times \vec{a})+\vec{c} \times(\vec{a} \times \vec{b})\) and hence prove that \(\vec{a} \times(\vec{b} \times \vec{c}), \vec{b} \times(\vec{c} \times \vec{a}), \vec{c} \times(\vec{a} \times \vec{b})\) are coplanar.
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.10

Question 11.
If \(\vec{a}\), \(\vec{b}\) and \(\vec{c}\) unit vectors and \(\hat{a} \times(\hat{b} \times \hat{c})=\frac{1}{2} \hat{b}\) find the angles that â makes with b̂ and ĉ, where b̂, ĉ are not parallel.
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 12 Vectors Ex 12(d) Q.11

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Odisha State Board Elements of Mathematics Class 12 Solutions CHSE Odisha Chapter 9 Integration Additional Exercise Textbook Exercise questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 1.
∫\(\sqrt{1-\sin 2 x}\) dx
Solution:
I = ∫\(\sqrt{1-\sin 2 x}\) dx
= ∫\(\sqrt{(\cos x-\sin x)^2}\) dx
= ∫(cos x – sin x) dx
= sin x + cos x + c

Question 2.
∫\(\frac{d x}{1+\sin x}\)
Solution:
I = ∫\(\frac{d x}{1+\sin x}\)
= ∫\(\frac{1-\sin x}{\cos ^2 x}\)
= ∫sec2 x – sec x tan x dx
= tan x – sec x + c

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 3.
∫\(\frac{\sin x}{1+\sin x}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.3

Question 4.
∫\(\frac{\sec x}{\sec x+\tan x}\) dx
Solution:
I = ∫\(\frac{\sec x}{\sec x+\tan x}\) dx
= ∫\(\frac{\sec x(\sec x-\tan x)}{\sec ^2 x-\tan ^2 x}\) dx
= ∫sec2 x – sec x tan x dx
= tan x – sec x + c

Question 5.
∫\(\frac{1+\sin x}{1-\sin x}\) dx
Solution:
I = ∫\(\frac{1+\sin x}{1-\sin x}\) dx
= ∫\(\frac{(1+\sin x)^2}{\cos ^2 x}\) dx
= ∫[sec2 x+ tan2 x+ 2sec x tan x) dx
= ∫[2sec2 x – 1 + 2sec x tan x) dx
= 2tan x – x + 2sec x + c

Question 6.
∫tan-1 (sec x + tan x) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.6

Question 7.
∫\(\frac{\cos 2 x-\cos 2 \alpha}{\cos x-\cos \alpha}\) dx
Solution:
I = ∫\(\frac{\cos 2 x-\cos 2 \alpha}{\cos x-\cos \alpha}\) dx
= ∫\(\frac{\left(2 \cos ^2 x-1\right)-\left(2 \cos ^2 \alpha-1\right)}{\cos x-\cos \alpha}\) dx
= 2 ∫(cos x + cos α) dx
= 2 sin x + 2x cos α + c

Question 8.
∫tan-1\(\sqrt{\frac{1-\cos 2 x}{1+\cos 2 x}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.8

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 9.
∫\(\frac{d x}{\sqrt{x+1+} \sqrt{x+2}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.9

Question 10.
∫\(\frac{2+3 x}{3-2 x}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.10

Question 11.
∫\(\frac{d x}{\sqrt{x}+x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.11

Question 12.
∫\(\frac{d x}{1+\tan x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.12

Question 13.
∫\(\frac{x+\sqrt{x+1}}{x+2}\) dx (Hints put : \(\sqrt{x+1}\) = t)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.13

Question 14.
∫sin-1\(\sqrt{\frac{x}{a+x}}\) dx (Hints put : x = a tan2 t)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.14

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 15.
∫ex\(\left(\frac{2+\sin 2 x}{1+\cos 2 x}\right)\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.15

Question 16.
∫\(\frac{\left(x^2+1\right) e^x}{(x+1)^2}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.16

Question 17.
∫\(\frac{x^2-1}{x^4+x^2+1}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.17

Question 18.
∫\(\frac{x^2 d x}{x^4+x^2+1}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.18

Question 19.
∫\(\sqrt{\cot x}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.19
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.19.1

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 20.
∫\((\sqrt{\tan x}+\sqrt{\cot x})\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.20

Question 21.
∫\(\frac{\mathrm{dx}}{x\left(x^4+1\right)}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.21

Question 22.
∫\(\frac{\mathrm{dx}}{e^x-1}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.22

Question 23.
∫\(\frac{(x-1)(x-2)(x-3)}{(x+4)(x-5)(x-6)}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.23

Question 24.
∫\(\frac{d x}{\left(e^x-1\right)^2}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.24

Question 25.
∫\(\frac{d x}{\sin x \cos ^2 x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.25

Question 26.
\(\int_2^4 \frac{\left(x^2+x\right) d x}{\sqrt{2 x+1}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.26

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 27.
\(\int_{-a}^a \sqrt{\frac{a-x}{a+x}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.27
Let a2 – x2 = t2
-2x dx = 2t dt
x = -a ⇒ 0 t = 0
x = a ⇒ t = 0
= 0
I = aI1 – I2 = aπ

Question 28.
\(\int_0^{\pi / 2}(\sqrt{\tan x}+\sqrt{\cot x})\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.28

Question 29.
\(\int_0^{\pi / 2} \frac{\cos x d x}{1+\cos x+\sin x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.29

Question 30.
\(\int_0^1\)x (1 – x)n dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.30

Question 31.
\(\int_0^{\pi / 2}\)sin 2x log (tan x) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.31

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 32.
\(\int_0^{\pi / 2} \frac{\sin ^2 x d x}{\sin x+\cos x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.32
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.32.1

Question 33.
\(\int_0^{\pi / 2} \frac{\sin ^2 x d x}{1+\sin x \cos x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.33
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.33.1

Question 34.
\(\int_0^{\pi / 2} \frac{x d x}{\sin x+\cos x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.34

Question 35.
Prove that \(\int_0^\pi\) x sin3 x dx = \(\frac{2 \pi}{3}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.35

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise

Question 36.
\(\int_{\pi / 5}^{3 \pi / 10} \frac{\sin x d x}{\sin x+\cos x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.36

Question 37.
\(\int_0^\pi\)|cos x| dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.37

Question 38.
\(\int_1^4\)(|x – 1| + |x – 2| + |x – 3|) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.38

Question 39.
\(\int_{-\pi / 2}^{\pi / 2}\)(sin |x| + cos |x|) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.39

Question 40.
\(\int_0^\pi\)log (1 + cos x) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Additional Exercise Q.40

CHSE Odisha Class 11 English Writing Argument or Persuasion

Odisha State Board CHSE Odisha Class 11 Invitation to English 3 Solutions Writing Argument or Persuasion Textbook Activity Questions and Answers.

CHSE Odisha 11th Class English Writing Argument or Persuasion

2.4 Argument And Persuasion

Argument is that form of writing the main purpose of which is to persuade your readers (or listeners) to adopt a certain attitude, point of view, or course of action.

Read the following views, expressed by six different speakers, on the importance of English in India, in a debate in Femina.

a. Years ago the sun did not set on the British Empire, but the sons and daughters of India still speak English. ‘Please’ and ‘sorry’ are very much a part of our vocabulary. In most’states higher education is imparted in the English language. The white man’s language still holds the same fascination today as they did a century ago. More Indians are speaking and writing in English than ever before. A separate class of Indo-English writers, acclaimed internationally, exists today. Telephone directories, advertisements, films, music, etc. are in English. Hence, the language has been integrated into our culture.

b. English is an important language in India today. For all important business transactions, paperwork and documentations is in English (like banking, shares, certificates). The gifts we have received from the British are the postal and telegraph services, railways and the English language. As the industrial revolution first took place in England, most of the mechanical engineering terminology is in English. For instance, there is no Hindi equivalent for the term ‘internal combustion’. It is very important to know English.

c. Knowledge of English language has helped me to communicate not only with my audience abroad but even with Indians of various states. English is an Indian language. If Indian states try and promote their languages, there is nothing wrong in it. But at the same time, English language and literature should not be neglected. It is an interesting language with a rich literature.

d. English is an Indian language. Any Indian who is slightly educated understands English, It is the langauge of science and technology. It connects us with the world. In India, people who know English often dominate non- English speaking Indians. There is no harm in learning and speaking in English, but to follow western culture along with the language is not appropriate.

e. English is one of the languages spoken by Indians. But it is wrong to believe that to achieve or to get a job one must know English. Most people in India feel that to earn their bread they should know English. In Germany, China and Japan people hardly understand English. Among the Indians the ‘mental slavery’ to English still exists.

f. It is a wrong belief that English is an important Indian language. Only two percent of Indian speak it. In fact, it is a language that often leads to complexes. I remember very well when the well-known Russian writer. Rasool Humzatov came to Delhi and narrated his poems, not in English or Russian, but in the regional language. Because he was proud of it. We Indians do not have enough respect and love for our language. Personality, even when I meet people who are well-versed in English, I speak in Hindi.

CHSE Odisha Class 11 English Writing Argument or Persuasion

It is important to dispel the guilt complexes regarding Indian languages, that all of us have.
The main points raised by the speakers are noted below.
(i) English is the language of higher education.
(ii) The language of international communication.
(iii) Only 2% Indians speak English.
(iv) The language of science and technology.
(v) The belief that one can easily get a job or achieve success is not always true.
(vi) People in China, Japan and Germany hardly understand English.
(vii) Self-respecting people respect their mother tongue/dialect.
(viii) People in India need English.
(ix) Early education of a child must be in the mother tongue.
(x) Indian languages including Indian culture get neglected.
(xi) Language of communication inside India.
(xii) Language of business, commerce and advertisement.

Note that some of the arguments are in favour of English and others against English. Put them in two separate columns, as suggested below. The first one has been done for you. Think, and add your own points.

Note that some of the arguments are in favour of English and others against English

Answer:

Note that some of the arguments are in favour of English and others against English answer

CHSE Odisha Class 11 English Writing Argument or Persuasion

Activity 36

We have a number of arguments here, both for and against English. Can you now reach a definite position of your own, after considering both sets of arguments ? Try to produce your own arguments to counter those presented by the speakers : for example, you could argue that English can be replaced by Hindi for the purposes of communication within India, etc. Write a paragraph on any one of these points.

Answer:
One of the main arguments in favour English is that people in India need English. But, in my view, this is not correct. We should know that people in China, Japan and Germany hardly understand English. Nevertheless, they are more prosperous than India. Of course, lately China has felt the importance of English. English is a foreign language and not one of the soil. Only 2% Indians speak English. English has become a medium of education in our colleges and universities.

This is doing an incalculable harm to the proper intellectual growth of students. A fast majority of students fail to understand the lessons imparted through English. The very thinking and understanding of the student is stunted under the weight of an incomprehensible language. The spread of English also hinders the growth of Indian culture. Lastly, though not the least, it can be said that there should be an end to ‘the mental slavery’ that still exists among the Indians.

Activity 37

(i) Given below are some of the views expressed by different speakers on the topic “The Reading habit is dying out” in Femina. Read through each of them.
(ii) Note that some speakers accept the proposition while others reject it. There is one speaker who offers suggestions to improve the reading habits of children. Try to identify the main points in each speech and arrange them under three headings :
(1) in favour of the proposition
(2) against the proposition and
(3) suggestions.
(iii) Add your own points. Be clear about the points you support and those which you do not support.
(iv) Before you start writing on the topic, think of an appropriate beginning. For this, see how the speakers begin their speeches. It will help you in starting your paragraph.

Now read the following speeches.

(a) I agree that reading is a dying habit. A lot has been already written about how television is rapidly stealing a march over reading. The sale of books is diminishing, while the launching of a new television channel has become a regular affair. A lot of children find other ways of passing their leisure hours because they have simply not discovered the wonderland of books and the pleasure it offers. At the age of two or three, they are taught how to read, but as they grow older, they are not taught to use reading for entertainment, information, and knowledge.

Brought up on a diet of textbooks, the child does not get to read anything else. Naturally, when a child finds that the textbooks he/she reads are dull and boring, he/she never feels like reading anything else. There is no addiction more pleasurable than getting hooked on books. Parents should encourage their children to read, but let me point out that most adults don’t read themselves; a cursory glance at the day’s newspaper is all the reading they seem to do. How can they expect their children to develop the habit of reading, when they themselves sit down in front of the TV set in their free time ?

(b) It is definitely true that reading is a dying habit, and one of the major reasons for this decline is the advent of the electronic medium. Even the reading of newspapers has been limited to that headlines and few introductory paragraphs. If one gets the news and can watch a few soap operas for entertainment just by pressing a few buttons, why should anyone then take the trouble of reading? But that’s very sad for we’re losing the very flavor of life.

Just sitting like robots in front of a box that gives us information like robots, like listening to it, watching it — these things kill our intellectual faculties. We’ve failed to realize that the lasting impact on the mind can be provided by the written word alone. Reading gives one time to ponder over things and it enriches our vocabulary too.

(c) The habit of reading is increasing day by day. There is a boom in publishing in India, and our sales have doubled in the last few years. Indian authors are creating ripples in the international literary scene. Our company has linked up with Harper Collins and Pan Macmillan, so international books are being made available to Indian readers at a reasonable price.

Access to technology and infrastructure has made things easier for publishers. It has led to innovations in packaging and graphics. Focused designs have made the appearance of books much more attractive. Printing quality too has improved vastly. The reader today has a good variety to choose from.

(d) I don’t totally agree with the statement that reading is a dying habit. As a librarian for nearly 27 years, I’ve seen students and research scholars. I feel that my reading habit has changed a lot. Students prefer to read magazines and newspapers rather than books. Earlier, during the summer vacations, many students did come to the library for general reading.

today, they have various other options like listening to music and watching television programs. But the library is never empty. Light reading may have declined, but academic reading related to assignments, references, and research, has not.

(e) I don’t think that reading is a dying habit – but that parents and teachers have to play a very important role in inculcating this habit, for they are the role models for children. Since the child has more grasping power than an adult, it is the right age to develop this habit. It is important for parents to spend quality time with their children, to read aloud to children, to listen to what they’ve to say, and answer their questions.

CHSE Odisha Class 11 English Writing Argument or Persuasion

For the proposition Against the proposition
(i) Television has adversely affected reading (i) Students are not being encouraged to read
(ii) Children pass leisure hours in other ways than reading. (ii) Reading leaves a lasting impression on the mind and enriches one’s vocabulary.
(iii) Dull text books discourage the reading habit. (iii) Habit of reading is incresasing and sale of books proves this.
(iv) Adults don’t read them selves and thus are not good role models. (iv) Books of varied kinds are being read now.
(v) Reading materials are prohibitive in costs. (v) Parents should spend. their time with children; reading is not a dying habit.
(vi) Light reading has declined but not academic reading.

The Reading is a dying habit:
Most people believe that the reading habit is dying out and they are right about it. Even a cursory survey among students reveals that they spend more time watching television than reading books, except during examinations. Besides, children spend their leisure in many other ways rather than reading books. In addition to this, today’s textbooks are so dull and boring and studying has been made such a burden that children or students don’t have the motivation to read books.

Moreover, adults themselves do not read many books. They don’t serve as role models, instead they too spend more time on the T.V. Last but not the least, the cost of books have today become prohibitive. On an average, a book costs seventy-five to hundred rupees. It is all these factors that have made reading a dying habit. It is right that students are not being encouraged to read, that reading is something worthwhile, but suggestion that since sale of books have increased and therefore reading has increased is to miss the point.

A comparative study of sales of electronic consumer items and that of books reveal that the sale of electronic goods is twice as much as those of books. Moreover, those engaged in academic reading are a very negligible minority and they can’t be counted with those who read for pleasure. Similarly the contention that varied books are 1 being read does not prove that there are many readers. This attests the fact that today interests of people have become diversified and therefore to cater to their needs various kinds of books are being published and sold.

For example, a century back we had no books on computers but today there isn’t any library or bookshop which does not possess books on computers. Thus, we can safely conclude that reading is a dying habit. The television is now reining supreme over the minds. The T.V. is ubiquitous even in the smallest of homes while illiteracy is rampant in a place like India.

Activity 38

1. The following are the main points that emerged in a debate on the topic “The presidential form of government is more suitable for our country than the parliamentary form”. But the points are all mixed up. Arrange them under two separate heads for and against.

a. Will ensure strong centre…. curb divisive tendencies.
b. Deprives people of power to elect, recall, approach representatives,
c. Will quicken change towards removal of poverty, equal opportunity, greater production, prosperity.
d. Makes ruling sections/groups more powerful….discourages loc*t! or minority talents, culture, distinctions,
e. Concentrates authority….leads to dictatorship.
f. Reduces expenditure on wasteful elections, political propaganda, party politics.
g. Denies fundamental freedom….curbs human rights; builds fear, cowardice.
h. Simplifies decision making and brings about uniformity, can lead to greater discipline, better economic achievements. Present system breeds inaction, indiscipline, strikes, poor results.
i. Suited to Afro-Asian temperament; recent events prove it too.
j. Is against Indian democratic traditions.

CHSE Odisha Class 11 English Writing Argument or Persuasion

2. First, make up your mind regarding the line of argument that you would like to follow. Second, think how to begin. Then, develop the outline into a paragraph : you are free to add your own points to the given ones.

Answer:
For:
a. Will ensure strong centre… curb divisive tendencies.
b. Will quicken change towards removal of poverty, equal opportunity, greater production, prosperity.
c. Concentrates authority.., leads to dictatorship.
d. Denies fundamental freedom… curbs human rights: builds fear, cowardice.
e. Suited to Afro-Asian temperament; recent events prove it too.

Against:
a. Deprives people of power to elect, recall, approach representatives.
b. Makes ruling sections more powerful… discourages local or minority talents, culture, distinctions.
c. Reduces expenditure on wasteful elections, political propaganda, party politics.
d. Simplifies decision making and brings about uniformity, can lead to greater discipline, better economic achievements. Present system breeds. inaction, indiscipline, strikes, poor results.
e. Is against Indian democratic traditions.

The presidential form of government is more suitable for our country than the parliamentary form.

It is just about 50 years since our country has been an independent nation. And numerous problems have been plaguing our nation. This has set people thinking in some quarters that there is a need to change our form of government. That would be like throwing the baby with the bathwater. The nation is just a baby with a particular structure and it need not be changed just because it has not grown and matured. In short, the parliamentary form of government does not need to go.

It is argued that the presidential form of government will ensure a strong centre, curb divisive tendencies, quicken changes in economic, social and political spheres, avoid wasteful expenditure on elections and party politics, simplify decision making and lead to greater discipline. There is no denying this fact. A presidential system does quickly bring about such changes but in the long run, as history has time and again shown, proves counter-productive and disastrous.

The rules of Mussolini, Napoleon, Stalin and Hitler are all outstanding examples of this trend. The presidential form of government makes the state larger than the individual, makes personal freedom a dream and gradually stamps out human rights. Finally, it leads to totalitarianism and dictatorship. The fear of facing a 1984-like scenario is ever alive in a presidential form of government. Oligarchy, plutocracy, stratocracy, autocracy and despotism are ominous realities in a presidential form of government.

History amply records this truth. The KGB and the communist party in USSR, the Nazi Party and the storm troppers in Germany are good examples of what happens when power is concentrated in the hands of a few or in one man’s hand. Moreover, a presidential form of government will gradually crush minority talent and minority culture and impose a cultural homogeneity. This would be disastrous in a multiracial, multicultural, multi-lingual, pluralistic society like India.

Its ethos would take the beating and its beauty will be lost. india has existed for ages as a pluralistic society whose greatness has been its power to assimilate and unite in its fold diverse cultures and religions. Tolerance and non-violence have been its mainstay and to abandon them would mean going against the grain of our character as a nation. Such a forced change would prove disastrous for the nation. Hence the parliamentary form of government with its respect for individual right, and its inclination towards unity in diversity, should be given the thumbs up.

CHSE Odisha Class 11 English Writing Argument or Persuasion

Activity 39

In several cities, television has come to nearly all homes. Some people welcome this while others find it a bad influence and an expensive addition to the drawing-room. Some believe it creates problems – indiscipline, loss of sleep, reduced attention to homework, the danger of bad movies as bad models. Others consider it a good ‘teacher’ – brings vividly a lot of new information, helps farmers, makes stories interesting, provides both entertainment and instruction, saves money spent on bad/indifferent films, food at restaurants, etc., keeps the family together at home. A television company has organised an “essay competition” on the subject ‘Television, your new friend’. At the same time, the ‘Society of Cinema-goers’ has invited essays criticising television. Write on each topic, presenting your views on television, and its uses/abuses.

Points for Points against
i. ______________ i. ______________
ii. ______________ ii. ______________
iii. ______________ iii. ______________
iv. _______________ iv. _______________

Answer:

Points for Points against
(i) A good teacher (i)Creates problem, indiscipline, loss of sleep etc.
(ii) Provides both entertainment and instruction (ii) Reduces attention towards homework
(iii) Leads to the togetherness of the family members (iii) Bad movies act as bad models
(iv) Saves money spent on food at restaurants (iv) An expensive addition to the drawing room

Answer:
Television: its uses and abuses :
Television has truly made the world a global village. Its all-encompassing reach to the remote comers of the globe has made omnipresent medium. Moreover, the fact that it is an audio-visual medium, makes it all the more effective as well as alluring. Thus, it could be put to a wide variety of use. But it is more abused than used. In a developing country like India, television has become the medium by which literacy is spread all over the nation.

Students tune into educative programmes like the country-wide classrooms of the University Grants Commission and Krishi Darshan Programmes cater to the needs of farmers. Similarly programmes on family planning, health awareness, AIDS, nutrition baby care are beamed across the country. Forecasting of weather and climate helps fishermen, farmers and all kinds of people to plan out their future course of action. Storm warning, earthquake warnings and flood warmings have had a greater impact because of visual and graphic details of facts.

Above all, television has become the supreme medium of infotainment. Watching the news or watching a soap opera, a cookery special or a sports channel, a movie or an engaging group discussion, a sermon or a song, the television has it all, controlling and dispersing knowledge all over the world. And yet unconsciously the television is ruling us, stealing our time and making morons out of us.

A couch potato is no more a rarity. A great thinker enumerates the abuses of television as follows. First, television makes people emotionally insensitive. The images of sex and violence that are projected on the screen gradually drive out all human feeling from us and renders us indifferent to such incidents in real life. We accept them as normal. A murder, a rape, a dead body no more shocks us as it did earlier generations. We are gradually being denuded of humane feeling.

Second, television makes viewers morally uncritical and impairs their sense of judgement. With a book, one reads and then ponders over what it has stated but the television gradually impairs this sense of evaluation in us. It hits us so powerfully and forcefully that it bypasses our head and rules our heart. Third, television destroys our ability to concentrate for long on anything. Kids who are brought up on fast moving scenes and cartoon characters thus do not find their teachers exciting, their books seen dull and boring.

Quickfix solutions, capsule presentations, ready-made notes, fast food are the order of the day and television is one great factor in enhancing the pace of life and thereby reducing concentration spans of people. Fourth, television sets up such role models and projects such lifestyles which young people follow with zeal. They are led to believe that all that life is about is having girl-friends, wealth, fame and power. Finally, T.V. is creating dislocations in centres of authority.

Most often a person becomes authoritative because he or she is well- known. Thus a cricket star or a hero tells you to keep away from AIDS and has your attention no matter what he does in his personal life. Thus, his voice is powerful while that of a celibate priest’s is not. As a result there is total psychological, moral and academic confusion in our culture. T.V. is not bad just as money is not bad. It’s the way one uses it that matters. Let the T.V. be our servant and not our master.

CHSE Odisha Class 11 English Writing Argument or Persuasion

Activity 40

Here are a few more topics for argumentative writing. Prepare outlines and write on each topic.
i. Men and women should/should not be paid equal wages for equal work.
ii. Prohibition will save the country from destruction/Prohibition goes against individual freedom. (Prohibition-disallowing by law the making and sale of alcoholic drinks.)
iii. Cricket commentaries are a national evil./ Cricket commentaries provide entertainment and education.
iv. History breeds narrow-mindedness. It should not be taught in schools/colleges.
v. Driving licenses should not be issued to students in schools/colleges.
vi. Girls should not marry before they are twenty, boys before they are twenty-five.
vii. College education must be made free.

Answer:
(i) Men and women should be paid equal wages for equal work.
For:
(a) Equal pay for equal work ensured in the Indian Constitution.
(b) Women do not work lesser than men/women do equally good work as men.
(c) It is the quality of work which matters and not who did it/wages are given for task completed, and not because someone did the task.
(d) Pay hike and promotions are made on grounds of merit and not on basis of gender.

Against:
(a) Women are less intelligent than men.
(b) Women work less than men.
(c) Women cannot do certain kinds of work because they are not physically fit to do it.

Gender differences have curbed the rights of women in a patriarchal and male dominated society. As a result, in some quarters it is still held that women should not be given equal wages as men. This kind of primitive thinking is a result of male chauvinism and is not justified by facts at hand. It has nothing to do with the question of women receiving equal wages as men. Patriarchal society has always held women as inferior to men. As a result, women were thought to be less intelligent than men.

This argument was thus put forth in favour of giving lesser wages to women. The contention is however not borne out by facts. Women have proved themselves the equals of men in almost all professions and spheres of life whether in science and techlology or in the humanities and social science. As more and more opportunities are being given to them women are proving themselves equal for men in every sphere of life.

Admittedly they are biologically made less strong than men but now-a-days work requires more brain and, therefore, the question of equal pay for equal work arises in the context of what work woman is doing and not what she is not. Besides, women Boxers, wrestlers, athletes, weightlifters. Marathoners etc. have proved that they too can do things like men. However, a strong case can be made for the question of equal pay for equal work for women.

First of all, just as equal opportunity for all is enshrined in our Constitution, so also equal pay for equal work is enshrined in our Constitution. A just and fair society will always provide equal pay for equal work for that is the universal law of natural justice. Considerations of caste, creed, race and sex should never come in way of a person’s wages. Secondly, it is another natural axiom that the meritorious be rewarded. If the woman is equally qualified as man, if she does work equal to man, then she deserves a wage equal to it, as men do.

Pay hike and promotions are decided on merits of individuals and not on considerations of caste and creed or sex. Finally, it may be argued that women in many ways are better than men. They are more sincere, committed, honest, responsible and hard-working than men. Case studies of working men and women has proved this. Thus, women deserve equal pay for equal work because they are in no way inferior to men in their qualifications and in their work.

CHSE Odisha Class 11 English Writing Argument or Persuasion

(ii) Prohibition will save the country from destruction / prohibition goes against individual freedom.
For:
(1) Drinkers are bread winners, drinking therefore denudes the bread supply.
(2) Drinkers are physically violent; they indulge in wife beating and also a general nusiance.
(3) Drinking leads to hazardous health problems, the cost of which has to be borne buy family / govt.

Against:
(1) Prohibition curbs freedom of an individual.
(2) Prohibition breeds illegal trade in liquour.
(3) Prohibition results in loss of revenue to state.

Prohibition will save the country:
Drinking and smoking are two-sides of the same coin. They are equally dangerous and hazardous not only for the individual but also for the nation as well. Therefore, it is necessary to implement and ensure prohibition, for this alone can save the country from destruction. The opponents of prohibition are of the view of that it curbs freedom of the individual. They are right but of course individual freedom has always been curbed by social limitations to ensure that every other individual enjoys his or her liberty.

A man has the right to walk on the road as long as he does not infringe anybody else’s right to walk on the road. If drinking results in social disharmony, then it must be prohibited. A doctor prescribes a bitter pill to heal a person in spite of the protests of an individual. A whole individual can be a useful citizen. Secondly, anti-prohibitionists talk of the breeding of illegal trade in liquor.

True indeed: prohibition breeds an illegal trade in sale of liquor and the very purpose of prohibition is thereby defeated. But illegal trade can be prevented, an alert police, a cooperative public can detect and stop this trade. This has been proved earlier in Andhra Pradesh where women enforced prohibition and curbed illegal trade. Finally, there is the loss of revenue to the state. This too is true. But it can be argued that the cost of having host of diseased drinkers is higher than that of loss on revenue due to prohibition.

It is fallaciously thought that the cost of treating a man with drinking related health hazards is borne by families of those individuals but the national loss in this context is not taken into account. Moreover, less corruption and generation of revenues in other trades can nullify the loss accruing from prohibition. Non-prohibition on the other hand, has high costs in terms of familial, societal and national loss.

Consumption of country liquor by males who are bread winners in lower income groups have left families bereft of the basic needs of food, shelter and clothing. Broken families, loss of childhood, denial of education and health are the result. The social costs in terms of crime, prostitution, child labour, drug addiction, and a host of other problems emerging from such households, are immense.

Moreover, drinkers gradually lose self-esteem, self-confidence and slowly lose skills. They become irresponsible and unfit for work. This happens even among people of higher income group. Their erratic behaviour, tendency to shimk from duty and going on unauthorised leave hurts sectors in which they work thereby adding to the national loss. Finally, it may be reiterated that the cost of rehabilitating a person with drink- related health hazards is exorbitant.

Whether it is the government that finances this, the company or the individual, all of them result in a national loss. On the other hand, the money saved by individuals on enforcement of prohibition results in per capita gain though it may not accrue to the revenue of the state. Prohibition is therefore a better option than the freedom to drink. For prosperity of the family leads to prosperity of the nation.

CHSE Odisha Class 11 English Writing Argument or Persuasion

(iii) Cricket commentaries are a national evil / Cricket commentaries provide entertainment and education.
For:
– Is a waste of time
– A hobby of the leisure class
– Take too much air time and T.V. time.
– Does not benefit the state or nation.
– Denies equal weight to other sports.

Against:
– Commentary is an art.
– Commentary provides entertainment and education.
– Commentaries provide job and earn revenue.

The very mention of cricket commentaries as a national evil gives rise to passions because the game of cricket is the favourite of a large majority of the upper and middle classes of people. Nevertheless a reasoned analysis of its pros and cons reveals that cricket as well as its commentary is a national evil. First of all cricket commentaries involve a colossal waste of time. During a cricket match, offices are deserted and so are schools and colleges.

People in factories and business establishments slow down work and sometimes even stop working. Moreover, a game of cricket takes a lot of time. A test match spans three to five days while the one day game consumes 8 hours. An avid fan of cricket who listens to its commentary pays little attention to work because the match is held mostly during office hours, school and college hours from 9.00 a.m. to 4.00 p.m.

Time is money and therefore the damage to the economy during a cricket match is irreversible. On an average if a man watches cricket for 4 hrs. a day for 60 days, there is a waste of 24 hrs or a total of 10 days in a year. If the number of those watching or listening to commentaries is even a minimum of 2 million then there is an astounding waste of 20 million days.

The corresponding loss to the economy is therefore colossal. Besides this, cricket commentaries occupy too much of air space as well as as visual space on the T.V. The radio and the television could be used to broadcast other | programmes of social interest during this time. An even greater lacunae is the unequal media coverage that other sports receive. The priority that is given to cricket by the media and T.V. networks does not encourage sportspersons of other games.

While sponsorers are available to- support cricket matches there are very few sponsorers to support the broadcasting of other sports. Further, the revenue generated from commentaries on cricket matches is mostly 1 deposited in the offices of the T.V. Network which has bought the rights to brodcast the match. Revenue to the state in this context is paltry. Opponents of this view that commentaries are a national evil hold that they are educative and entertaining.

But it may be reasonably shown that their educative value is minimal and marginal. As for entertainment that is a very transitory form Of entertainment. The same can be said of its value as an art. It is art of transitory value and does not have any permanent or lasting effect. As for the contention that it provides jobs, it can be said that employment opportunities as commentators are very minimal, limited only to a few individuals and that it is not to be taken as a profession. Thus after weighing the pros and cons it may be emphatically said that cricket commentaries are a national evil.

CHSE Odisha Class 11 English Writing Argument or Persuasion

(iv) History breeds narrow-mindedness. It should not be taught in schools/colleges.
For:
(1) History breeds crude nationalist.
(2) It is full of crimes.
(3) It provides a confused heap of facts.
(4) It records popular beliefs.

Against:
(1) History is interesting and useful.
(2) It helps us to escape the burdens of life.
(3) It is a sound teacher.
(4) It provides us moral inspiration.
(5) It widens our intellectual outlook.

History generated crude nationalism among the students. It records the glory and achievements of some countries and the failures of others. Germany under Hitler was a case in a point. The students who read it learn nothing. History is a record of war and blood-shed. If we scan the pages of history, we learn a lot about many bloody battles fought among different nations. History takes us to a world where lies a confused heap of facts. It is difficult to understand and analyse them. These facts lack colour.

Above all, it acquaints us with some popular beliefs. There is nothing innovative about them. All these facts mentioned above adversely affect the minds of the people. Therefore, history should not be taught in schools/colleges. We should see the bright side of history. It launches man on a thrilling adventure of a journey to the past. It awakens in him the racial memories that he slumbering in the depths of time. The study of history strengthens one’s faith, however, wavering, in the ultimate decency of things.

History must not be read as a collection of dry and old facts and dates, but as living representation of the past which has a significance for the present. The study of history is interesting, useful and amusing. It helps us to escape the burdens of life. Moreover, history is a sound teacher. The records of the past interpreted in practical by noble men and women, supply moral tonic which must be administered to each generation. Study of this subject widens our outlook. Besides, history makes our intellectual horizon touch new heights. It also sensitizes our minds. Therefore, history should be taught in schools and colleges.

(v) Driving licenses should not be issued to students in schools/colleges.
For:
(1) Driving licenses make the students wayward.
(2) They become law-breakers.
(3) They live in a world of fancy.

Against:
(1) Issuing driving licences to school/college makes them responsible.
(2) They save their time.
(3) They become law-abiding.

Issuing driving licenses make school/college students carefree. They move freely in their bikes/four-wheelers without caring anybody. They become liberty drunk. They never feel the importance of why they have been issued driving licenses. They make use of their vehicles for a constructive purpose. They are young. In the full flush of their youth, they drive recklessly, flouting the traffic rules.

Sometimes they meet with accidents. Some die premature deaths, some escape with a miracle and others suffer fractures. These students find themselves cut off from the outside world when they drive their bikes or cars. On the other hand, we must not be blind to the other side of these facts. School/college students should be issued driving licenses, because they are mature. Fear of parents and accidents makes them responsible. They do not want to waste the latter’s money by misusing driving licenses.

They drive their vehicles very carefully. Time is precious. They save it as a result of using bikes or cars. These students become law- abiding. They are alive to the traffic rules. They understand why they have been given bikes/four wheelers by their parents. In view of these facts, driving licenses should be issued to school/college students.

CHSE Odisha Class 11 English Writing Argument or Persuasion

(vi) Girls should not marry before they are twenty, boys before they are twenty- five.
For:
(1) Girls become highly educated.
(2) They get a chance to fulfil their dreams. .
(3) They enjoy empowerment.
(4) They become independent and are free from the drudgery of household work.
(5) They become ideal mothers and wife.
(6) Boys are no different.
(7) They want higher education.
(8) They become independent.

Against:
(1) They should be educated.
(2) Marriage before 20 makes them typical house-wives.
(3) They are immature to understand the ways of the world.
(4) They go astray.
(5) They are deprived of enjoying impowerment.
(6) Boys cannot be highly educated.
(7) They cannot be independent to the core.

Girls should be highly educated in word and spirit. Very few girls continue their studies after their marriage. They try their best to fulfil their dreams and achieve then- goals. Today we see many a woman enjoy empowerment. They have become high- profile entrepreneurs, bureaucrats and academicians. They are now successful political leaders. They brim with confidence. They become independent by earning their livelihood. Educated wives get a respite from the monotany of their household works.

Education makes them conscious of their duties to their husbands and children. They never become a burden on society. Boys are no different from the girls. A certain age is indispensable for building their career, but marriage before 25 puts bars in fulfilling the dreams, hopes and aspiration. Failures to achieve their goals drive them to a state of frustration. As a result of higher education, they earn handsome income and become assets to their families.

On the other hand, if the girls marry before twenty, they cannot enjoy the things they want. They become neither highly educated nor enjoy real empowerment. They become typical house-wives and don’t get a chance to experience what is happening in the external world. Frustration grips them. They don’t understand the language of independence. They often go astray and as a result, bring disgrace to society. Boys suffer the same fate.

Their marriage before twenty-five seldom allow them to go for higher education according to their will. They soothe with frustration for not achieving their goals. They fail to rise to the expectations of their parents. They are shorn of confidence. They can’t be fiercely independent. Therefore, girls should not marry before they are twenty, boys before they are twenty-four.

CHSE Odisha Class 11 English Writing Argument or Persuasion

(vii) College education must be made free.
For:
(1) Scope for higher education, irrespective of caste, creed or colour.
(2) It makes everyone confident.
(3) It leads to independent among the students.
(4) It provides broader exposure to the outside world.

Against:
(1) Ordinary students have no value.
(2) Free college education creates indiscipline.
(3) Wastage of public money.
(4) There is no room for further academic development, there is no much fund for research.

Free college education provides a scope for higher education for all sorts of students, irrespective of caste, creed and colour. They all feel a state of what higher education is. This makes them brim with confidence. Some of the poor students get a chance to dream big and are determined to achieve someting in life. College education makes them independent, because, they get a chance to earn their livelihood.

They are now exposed to the happenings of the external world. As a result, they can contribute to the well-being of their country and fellow-beings. On the other hand, the issue has a darker side. Free college education encourages many ordinary students to sit in their classes. They should have been given vocational education. Instead of reading sincerely, they create indiscipline in the college and as a result, spoil the academic environment.

Besides, free college education costs our public exchequer beyond imagination. The common tax-payer’s money is injudiciously spent. Academic development suffers a serious jolt as a result of paucity of finance. Research work lags far behind. In view of these facts, college education should not be free.

CHSE Odisha Class 11 English Writing Exposition

Odisha State Board CHSE Odisha Class 11 Invitation to English 3 Solutions Writing Exposition Textbook Activity Questions and Answers.

CHSE Odisha 11th Class English Writing Exposition

Expository Writing

Exposition is an orderly presentation of facts and ideas. It exposes or shows. All exposition is informative. In an exposition, you answer various questions that might be asked of an object, an event, or an idea – questions like these:
What is it?
What does it consist of?
What is it for?
How is it put together?
What good is it?
What does it mean?
What is the cause of it?
What will be the result of it?
There are several methods of writing an exposition of these, exposition by definition and exposition the rough analysis are the most important.

CHSE Odisha Class 11 English Writing Exposition

Activity 31

Develop paragraphs of your own, using the following plans. The given topic should form part of the opening sentence.
(a) Topic: There were several things I liked (disliked) about my high school.
Sentence 1: Topic sentence
Sentences 2, 3, 4, 5: The things I liked (disliked)
Sentence 6: Conclusion

(b) Topic: It is easier for someone to express himself in speech than in writing.

It is easier for someone to express himself in speech than in writing.

Answer:
(a) There were several things I liked in my high school. Firstly, we had good teachers who not only taught us well but were also very friendly with us. Secondly, we were never burdened with homework. Instead, we were asked to read what was taught in the class at home. Thirdly, there were a lot of extra-curricular activities which helped in developing our personality. Finally, we had an Old Boys Association which helped us keep in touch with our classmates and to know about the development of our school. Thus, my high school was really unique in many ways.

(b) Is it easier for someone to express himself in speech than in writing? Or is writing easier than speech? Linguists are divided in their views. Some say that speech is easier than writing because one learns to speak spontaneously without having to attend school. They also argue that speech takes less time to learn than writing. Others, however, dispute these views.

They contend that writing is easier than speech because it involves graphic images which the child can easily learn even before imitating speech. They also are of opinion that writing is accessible to speech-disadvantaged children and therefore, more universal. Thus, linguists are equally divided over the question of which is easier, speech or writing.

CHSE Odisha Class 11 English Writing Exposition

Activity 32

Write a paragraph on each of the following topics, using Chesterton’s model at page 39.
(a) Types of students
(b) Types of teachers
(c) Kinds of books we read
(d) Kinds of friends

Answer:
(a) Types of students :
Roughly speaking, there are three kinds of students in our college. The first may be called bookworms. They can always be seen pouring over books in the library when they travel by bus while having food and so on. This kind has no interest in games and most often they love to be indoors rather than play outside. The second sort may be called truants. These students take pleasure in not attending classes. They bunk college, go to films, play cricket and create a nuisance on the campus.

To them, we owe all the strikes and indiscipline in the college. The third kind is called Casanova’s. You can see them talking in hushed whispers with girls under a tree, in the corridors, accompanying them to the bus stop, or shadowing others who are not yet in their hold. The studies are secondary and they end up as unemployed youth who dream of their golden day in college.

(b) Types of teachers :
There are different types of teachers. Firstly, there are teachers who are dedicated to the core. They inspire their students to reach newer heights in the future. Their devotion to teaching is matchless. Secondly, there are teachers who just teach students for the sake of teaching. They are never serious about it. They lack dedication to their profession. Thirdly, there are those who pretend to be ideal teachers. They are dull. They always aim at earning money by paying lip service to their profession. These teachers bring disgrace to society.

(c) Kinds of books we read :
Books are of many types but they can be generally divided into good and bad. Good books are man’s most important teachers. They instruct and entertain, make men wise and ignorant, men of knowledge. Bad books, on the other hand, waste men’s time and introduce evil thoughts into their minds. They neither enlighten the mind nor broaden the imagination in the right direction. Thus good books ought always to be chosen over bad ones.

(d) Kinds of friends :
We have friends of several kinds. First, there is gossip. He can never keep our secrets and always lets us down by telling everything about us to others. Second, there is the coward. He is seldom able to stand on his own feet but that is not any danger. Keep him in the team for any enterprise and he’ll take off whenever he smells any danger to himself. Third, there is the flatterer. He always sings your praises and never tells you the truth. He is neither dependable nor trustworthy. He stays with one as long as he profits from his company and then he changes loyalty. Fourth, there is the slanderer.

This kind of friend feigns friendship but behind your back, he talks ill of you. Then there is the follower. This kind rarely takes his own initiative in doing anything for you. He’s a good supporter, a loyal disciple but you can’t hand him any responsibility and sit quietly. He needs nudging and guiding. There’s yet another kind called the parasite. He feeds on you, eats of you, borrows your notes, your money, your cycle, etc. He is always dependable. Finally, there is the one and only true friend. He is rare to find. But this is the kind of friend who is dependable, responsible, and trustworthy.

CHSE Odisha Class 11 English Writing Exposition

Activity 33

1. Write a paragraph ending with the sentence: “I’m afraid I didn’t like the film at all and wouldn’t recommend it to anyone.”
2. Write a short paragraph beginning with the sentence: “I had a very happy childhood.”
3. Write separate paragraphs from the point of view of the taxi driver and the truck driver, using the following outline. An accident between a truck and a taxi – an old man was killed – a buffalo was seriously injured – a policeman arrived on the scene – a doctor drove the dead body to the hospital.
4. Write a paragraph to be included in a letter to a pen-friend telling him/her how you celebrate Diwali.

Answer:
(1) Refugee is not worth watching. Its story is a stock one: Laila-Majnu, Romeo-Juliet like and perhaps borrowed from Daruwalla’s “Love in the Salt Desert.” There is no life in Abhishek Bacchan’s acting. As for action, there is not much that it has to boast off. Walking like a shepherd with a staff in his hand and a band around his head. Bacchan evokes pity rather than empathy, he does not inspire and he does not display much emotion, seems so wooden. Besides, photography, music, and choreography aren’t great either. In short, I’m afraid I didn’t like the film at all and wouldn’t recommend it to anyone.

(2) I had a very happy childhood. Father, Mother, Grandpa, and Grandma, all of us lived together. Every morning, Grandma would play with me and tell me tales. In the evening Grandpa would take me on walks and in the night I used to huddle in my mother’s lap and sleep. Those days were wonderful. It was all play and no work, no worries, no fears, only love. And every summer we went off to Puri to frolic in the sun and sand, I wasn’t afraid of the sea. Daddy put me on his shoulders and walked into the sea. The smell of the surf and the thundering of the waves excited me then as it excites me now. Truly I can never forget the joys of my childhood days.

(3) The Truck-driver’s point of view: It was almost noon as I carried a truckload of bricks to be delivered at the Institute of Physics. I was on N.H.5 and had already neared Acharya Vihar Square. I was to take a right turn at the square to get into the road leading to Sainik School. Traffic was thin and a buffalo was standing right in the turn and urinating. A taxi was coming from the Sainik School road. I put on the dippers indicating a left turn. I slowed down as I had to avoid the buffalo.

Suddenly, the taxi emerged, flashing its lights. I had already taken the turn while the taxi was speeding straight ahead. I applied the brakes but the vehicle did not halt because of the load. Instead, it careened past the taxi, hit an old man standing serenely and rammed into the ditch beside the N.H.5. My head hit the steering wheel and I became unconscious. When I woke up I was in the capital hospital. The Taxi driver’s point of view: I was returning from Sainik School after dropping a fare.

It was noon and I was supposed to pick up my little children from the convent school. I should have been there by 11.30 a.m. but it was already half an hour behind. Hence I was rushing with thoughts of my children waiting hungrily at school. As I was approaching Acharya Vihar Square, I saw a truck coming toward me. It was turning into the road. I was in a hurry. I did not want to wait till the truck had turned and so did not slow down my speed.

Instead, I flashed my headlights requesting priority of way but the adamant truck driver did not heed to my signal, it was turning. I applied the brakes but it was too late, I rammed into- a buffalo, swerved sharply to the right, grazed past the rear of the truck’s body, and then hit a telephone pole against which the car stopped. Fortunately, I escaped unhurt with only minor pain in my back. But then my problems were, not over. A policeman arrived from nowhere, accosted me, and asked me to get out of the car.

Meanwhile, people who were crowded around informed us that an old man had fallen down unconscious. There was a doctor among them and he suggested that we take him to the hospital. As the old man was brought to my taxi, the doctor noted that he had already died. However, I requested the doctor to keep quiet and immediately drove to the hospital with the dead body. I was lucky not to have been manhandled by people. But I must say it is all the truck driver’s fault. I did not kill the old man.

CHSE Odisha Class 11 English Writing Exposition

(4) Paragraph included in the letter

121, Kharavel Nagar,
Bhubaneswar
20 August 20

Dear Joseph,
Greeting from India!
I received your letter and your picture postcard at the same time. I will cherish the card for a long time to come. The picture of the Millennium Dome is crystal clear. It looks very beautiful. Well, you had written to me about how everyone in England celebrates Guy Fawkes day. You did have a lot of fun, really. I could see that from your letter. Do you know, here, back in India we too celebrate something similar to Guy Fawkes? There it commemorates the gunpowder plot but in India, we celebrate a festival called Diwali, the festival of lights.

It symbolizes the victory of good over evil, of light over darkness commemorating the victory of the forces of Shri Rama over the evil forces of Ravana. The festival falls every year in the month of October or November. On that day, we offer Puja to Shri Rama, distribute sweets among friends and neighbors and prepare for the night. We purchase crackers of all sorts and dry them in the sun. We also prepare wick lamps. The lamps and wicks are purchased from the market.

Then oil is poured into the lamps and the wick is set on it. These are then kept in a row on terraces, the boundary wall, on window sills, and everywhere where there is space to keep them. When night falls, these lamps are lit. There must be thousands and thousands of lamps lit in every house, in every street, town, city, district, and state. The house is thus lit like a Christmas tree. It looks beautiful and gay. After this starts the ceremony of lighting fire-crackers. Everyone, from a child to an old man enjoys lighting fire-crackers and bursting them.

This goes on till the last hours of the morning. Often, Diwali is celebrated for two days. Of course, one of these days is only declared a national holiday but then there is no holding back for persons who enjoy Diwali. They take leave and enjoy this festival. This reminds of Guy Fawkes day, isn’t it? Well, do write to me about how you celebrate Christmas. I am eager to hear from you.

With warm regards.
Your loving friend,
Subrat Das.

CHSE Odisha Class 11 English Writing Exposition

Activity 34

Do you have friends whose mothers are working? What problems do they have? Put these problems in the blanks in the list ‘
1. Getting pampered
2. Bad company
3. Neglecting studies
4. Aggressive attitude
5. Too much TV
6. Psychological problems.
7. Widening communication gap
_______________________
_______________________
_______________________
_______________________
Answer:
They have a widening communication gap.
They have psychological problems.
They are getting pampered.
They neglect studies.
They have bad company.

The list below contains some advantages that children of working mothers enjoy.
Now think of other advantages and add them to the list. Are these advantages real? If not, why?
1. Complete freedom
2. No nagging for homework
3. Enjoy yourself freely
4. Have full privacy
5. Gain in confidence
6. Be more, independent
7. Do what you like
_______________________
_______________________
_______________________
Answer:
These advantages are not real, because, without the mother’s presence at this stage, the children never feel the importance of their formative years which shape their future in a great measure.
They develop adaptability. 
They develop a sort of creativity.
They are free from worries.

CHSE Odisha Class 11 English Writing Exposition

Now write a passage of 2 or 3 paragraphs on ‘ Working mothers and their children
2. Dear ………………..,
My mother started working seven years ago. My first problem is that I have to keep ringing her up to find things in the house. Second, living with a ten-year-old sister is not as easy as it seems. My younger sister is supposed to take permission from me, but most of the time she doesn’t listen to me. Then I get angry and she rings up my mom who scolds me. Third, I don’t really have much freedom because I have to call my mother to take her permission. She has placed so many restrictions on me that I feel caged in. Fourth, Let me confess that at home I listen to music, watch TV and spend a lot of time with my friends, neglecting my studies. Besides, although my parents never pamper me, they always pamper my sister, my be because she is much younger. Very often I feel neglected when they do that. Lastly, I really wish that my mother or father were at home, especially some months before the boards.
3. Dear…………………,
I think it’s the best way. I don’t think I’d like to see more of my parents at home. I like my free time. At home I read, listen to music, fiddle around with the computer, play badminton and tennis, and even I have started writing because I don’t have any other entertainment. The other definite plus is that 1 get my own privacy, and I have also become more independent, in fact, when my maternal or paternal grandparents come over, then I feel closed in somehow. Since I do my own things, I am pretty confident about everything. But having someone at home is obviously a big advantage. I can never tell myself to study. I often wish my mother were at home to tell me
and help me. Worst of all, 1 waste a lot of my time worrying about security and about meals.

Answer:
Passage 3 throws light on the impact of a working mother on her child. Here the latter likes to be away from its parents. At home, the child enjoys reading, listening to music, playing badminton and tennis, and so on. Lack of any other entertainment makes the child start writing something. The most remarkable thing about it is its own privacy. As a result of its working mother, the child somewhat develops | closeness with its maternal or paternal grandparents. It becomes confident still, the child wishes the mother were at home for help. Worrying about security and about meals takes a lot of its time.

Activity 35

Read the following letters published in an issue of India Today. These letters \ tell us what is wrong with sports in India.

(a) The story on Indian sports (“A Shocking Mess”, August 15) reveals only the tip of the problem. Officialdom and corruption have so spoiled our system that every effort is made to stall an achievement. While sportsmen live like beggars, deprived of quality gear, the managers live like kings.
R. SINGH, NEW DELHI

(b) With neither motivation nor money to galvanize them, it’s no wonder that many players bid goodbye to sports once they get a sound footing elsewhere. It is high time that those who actually know about different sports are appointed at the helm of affairs.
MANI NATRAJAN, CHENNAI

(c) The fact that only 22 of the 46 probables for the hockey team reached the coaching camp shows the lack of commitment of the players. Though official mismanagement can be blamed, the athletes have to accept part of the responsibility.
B.C. PRAKAS, BANGALORE’

(d) If the story on India’s preparation for the Hiroshima Games had been published a year or two ago, it might have had some effect. To an extent, it is this lack of media coverage of sports, other than cricket and tennis, that is also responsible for India’s debacle in various events. MANISH PATHAK, NEW DELHI

(e) The sports mess is hardly surprising. After all, sports are also managed by the bureaucracy and the bigwigs. Like other plans and programs they implement, how could they deviate from their time-honored practice here – plan with fanfare, implement with nonchalance, forget the monitoring, and don’t worry about the results?
K G JAIN, NEW DELHI

CHSE Odisha Class 11 English Writing Exposition

(i) Read the letters again and make a list of the factors that are responsible for the sorry state of Indian sport is in.
(ii) If possible, think of and add your own points to the list.
(iii) Try to write 3 or 4 sentences on each point.
(iv) Write a short paragraph incorporating suggestions for improvement This should ideally conclude your topic. Now write on the topic “The Sorry State of Indian Sports.”

Answer:
Indian sports is in an extremely sorry state today. It is plagued by manifold problems to which there seems no end in sight. Officialdom and corruption have tarnished our sports bodies so much so that, every achievement is stalled. Moreover, while officials grab the limelight and the financial benefits accruing from an event, sportspersons who made it all possible, are handed over the crumbs. With such a state of affairs presiding, our sportsmen do not have any motivation to shine.

Leave alone prize money, they are often not even paid their due. And so, when they get a good job, they bid goodbye to the sports that they so much loved. After all, they also have to earn their livelihood to feed their families. Budding talents too are not spared. Companies would rather have an established player endorse their products than choose a greenhorn. As a result, young sportspersons take the help of their parents, friends, and relatives to hone their skills at meets both at home and abroad.

But when the money they had diminished to a trickle, they turn their back on sports and look for other options. Besides, the media is at fault too. Come cricket or tennis and they run to cover it. What about football, hockey, polo, kabaddi, handball, basketball, Choko, badminton, table tennis, chess, etc? Are they receiving equal coverage? This is a question that is better not asked by the media. They would shrink and then vanish. Then there’s the ubiquitous red-tapism of the bureaucracy and the official bigwigs.

Their plans for the development of sports in the country sound grand, but they are seldom implemented. They go “bang”, and “bang” in speeches but their implementation always ends in a whimper. However, all blame cannot be laid at the doors of others. Sportspersons too are responsible for this state of affairs. They lack commitment and professionalism. A foreign trip is coveted more for the glamour and the sightseeing than as an opportunity to bring home medals.

Most often, groups lack team spirit and this is very obvious in their game. How can these problems be solved? It is easier said than done. Solutions may be suggested but who will implement them? First, perhaps there should be an attitudinal change among the people who run the sports in this country. They should take it seriously as something concurring with national honor and national pride. Secondly, eminent sportspersons should run sports bodies.

Third, sportspersons must be encouraged by monetary rewards, and their achievements recorded and honored by sports bodies as well as the government. Fourth, the government must ensure the sponsorship of budding talents for national and international meets. Fifth, media coverage should be given equally to all sports and finally, sportspersons must be inspired to total commitment and professionalism. If and only when these changes are implemented in India, will the scene of Indian sports change for the better?