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?

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l)

Odisha State Board Elements of Mathematics Class 12 Solutions CHSE Odisha Chapter 9 Integration Ex 9(l) Textbook Exercise questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Exercise 9(l)

Question 1.
\(\int_0^{\frac{\pi}{2}}\)sin10 θ dθ
Solution:
\(\int_0^{\frac{\pi}{2}}\)sin10 θ dθ = \(\frac{9}{10} \cdot \frac{7}{8} \cdot \frac{5}{6} \cdot \frac{3}{4} \cdot \frac{1}{2} \cdot \frac{\pi}{2}\) = \(\frac{405 \pi}{7680}\)

Question 2.
\(\int_0^{\frac{\pi}{2}}\)cos12 θ dθ
Solution:
\(\int_0^{\frac{\pi}{2}}\)cos12 θ dθ = \(\frac{11}{12} \cdot \frac{9}{10} \cdot \frac{7}{8} \cdot \frac{5}{6} \cdot \frac{3}{4} \cdot \frac{1}{2} \cdot \frac{\pi}{2}\) = \(\frac{4455 \pi}{92160}\)

Question 3.
\(\int_0^{\frac{\pi}{2}}\)sin11 θ dθ
Solution:
\(\int_0^{\frac{\pi}{2}}\)sin11 θ dθ = \(\frac{10}{11} \cdot \frac{8}{9} \cdot \frac{6}{7} \cdot \frac{4}{5} \cdot \frac{2}{3}\) = \(\frac{3840}{4455}\)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l)

Question 4.
\(\int_0^{\frac{\pi}{2}}\)cos9 θ dθ
Solution:
\(\int_0^{\frac{\pi}{2}}\)cos9 θ dθ = \(\frac{8}{9} \cdot \frac{6}{7} \cdot \frac{4}{5} \cdot \frac{2}{3}\) = \(\frac{384}{405}\)

Question 5.
\(\int_0^1 \frac{x^7}{\sqrt{1-x^2}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.5

Question 6.
\(\int_0^1 \frac{x^5\left(4-x^2\right)}{\sqrt{1-x^2}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.6

Question 7.
\(\int_0^a x^3\left(a^2-x^2\right)^{\frac{5}{2}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.7

Question 8.
\(\int_0^1 x^5 \sqrt{\frac{1+x^2}{1-x^2}}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.8

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l)

Question 9.
\(\int_0^{\infty} \frac{x^2}{\left(1+x^6\right)^n}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.9

Question 10.
\(\int_0^\pi\)sin8 θ dθ
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(l) Q.10

BSE Odisha 10th Class Physical Science Solutions Chapter 4 କାର୍ବନ ଓ ଏହାର ଯୌଗିକ

Odisha State Board BSE Odisha 10th Class Physical Science Solutions Chapter 4 କାର୍ବନ ଓ ଏହାର ଯୌଗିକ Textbook Exercise Questions and Answers.

BSE Odisha Class 10 Physical Science Solutions Chapter 4 କାର୍ବନ ଓ ଏହାର ଯୌଗିକ

Question 1.
ଇଥେନ୍‌ର ଆଣବିକ ସଙ୍କେତ ହେଉଛି C2H6। ଏଥରେ କେତୋଟି ସହସଂଯୋଗ୍ୟ ବନ୍ଧ ରହିଛି ?
(a) 6
(b) 7
(c) 8
Answer:
(b) 7 [C-H ବନ୍ଧସଂଖ୍ୟା = 6 ଓ C–C ବନ୍ଧ ସଂଖ୍ୟା = 1]

Question 2.
ବ୍ୟୁଟାନୋନ୍‌ରେ ଥ‌ିବା ସକ୍ରିୟ ଗ୍ରୁପଟି କ’ଣ ?
(a) କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍
(b) ଆଲତିହାଇଡ୍‌
(c) କିଟୋନ
(d) ଆଲକହଲ
Answer:
(c) କିଟୋନ

Question 3.
ରୋଷେଇ କଲାବେଳେ ଯଦି ରନ୍ଧାପାତ୍ରର ତଳପଟର ବହିର୍ଭାଗ କଳା ପଡ଼ିଯାଏ, ଏହାର ଅର୍ଥ :
(a) ଖାଦ୍ୟ ସଂପୂର୍ଣ୍ଣ ରୂପେ ପ୍ରସ୍ତୁତ ହୋଇ ନାହିଁ
(b) ଜାଳେଣି ସଂପୂର୍ଣ୍ଣ ରୂପେ ଜଳୁନାହିଁ
(C) ଜାଳେଣିଟି ଆର୍ଦ୍ର ଅଛି
(d) ଜାଳେଣି ସଂପୂର୍ଣ୍ଣ ଭାବେ ଜଳୁଛି ।
Answer:
(b) ଜାଳେଣି ସଂପୂର୍ଣ୍ଣ ରୂପେ ଜଳୁନାହିଁ

Question 4.
ସହସଂଯୋଜ୍ୟ ବନ୍ଧର ଗଠନ CH3CI ର ଉଦାହରଣ ଦେଇ ବୁଝାଅ ।
Answer:
(i) CH3CI ଯୌଗିକ କାର୍ବନ, ହାଇଡ୍ରୋଜେନ ଓ କ୍ଲୋରିନ୍‌ ମୌଳିକମାନଙ୍କୁ ନେଇ ଗଠିତ ।

(ii) କାର୍ବନ, ହାଇଡ୍ରୋଜେନ୍‌ ଓ କ୍ଲୋରିନ୍‌ର ପରମାଣୁ କ୍ରମାଙ୍କ ଯଥାକ୍ରମେ 6, 1 ଏବଂ 17 ।
କାର୍ବନର ଇଲେକ୍‌ଟ୍ରନିକ୍‌ ସଂରଚନା K(2) L(4) ।
ହାଇଡ୍ରୋଜେନର ଇଲେକ୍‌ଟ୍ରନିକ ସଂରଚନା K (1) |
କ୍ଲୋରିନ୍‌ର ଇଲେକ୍‌ଟ୍ରନିକ୍ ସଂରଚନା K(2), L(8), M(7) ।

(iii) ଅକ୍ଲେଟ୍ ପାଇଁ କାର୍ବନ 4ଟି ଇଲେକ୍‌ଟ୍ରନ, ହାଇଡ୍ରୋଜେନ୍ 1 ଟି, ଇଲେକ୍‌ଟ୍ରନ ଏବଂ କ୍ଲୋରିନ୍ 1 ଟି ଇଲେକ୍‌ଟ୍ରନ୍

(iv) କାର୍ବନ ତା’ର 4ଟି ଇଲେକ୍‌ଟ୍ରନକୁ 3ଟି ହାଇଡ୍ରୋଜେନ ସହ (ପ୍ରତ୍ୟେକ ଗୋଟିଏ ଲେଖାଏଁ) ଏବଂ ଗୋଟିଏ କ୍ଲୋରିନ୍ ସହ ଭାଗ କରିଥାଏ । ତେଣୁ କାର୍ବନ ତା’ର 4ଟି ଇଲେକ୍‌ଟ୍ରନରୁ 3ଟି ଇଲେକ୍‌ଟ୍ରନ 3ଟି ହାଇଡ୍ରୋଜେନ ସହ ଏବଂ ଗୋଟିଏ ଇଲେକ୍‌ଟ୍ରନ କ୍ଲୋରିନ ସହ ସହଭାଜନ କରି ସହସଂଯୋଜ୍ୟ ବନ୍ଧ ଗଠନ କରେ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-1

(v) ଫଳରେ କାର୍ବନ ନିକଟତମ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ Ne ର ସଂରଚନା ଧାରଣ କରେ । ହାଇଡ୍ରୋଜେନ ନିକଟତମ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ He ର ସଂରଚନା ଏବଂ କ୍ଲୋରିନ୍ ନିକଟତମ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ Arର ସଂରଚନା ଧାରଣ କରି C – H ଏବଂ C – Cl ସହସଂଯୋଜ୍ୟ ବନ୍ଧ ଗଠନ କରେ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 5.
ତଳେ ଦିଆଯାଇଥ‌ିବା ଅଣୁଗୁଡ଼ିକର ଇଲେକ୍‌ଟ୍ରନ ଡଟ୍ ସଂରଚନାର ଚିତ୍ର ଦିଅ ।
(a) ଇଥାନୋଇକ୍ ଏସିଡ୍ (CH3COOR)
(b) H2S
(c) ପ୍ରେ|ପେନ୍
(d) F2
Answer:
(a)
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-2 BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-3

Question 6.
ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ କ’ଣ ଉଦାହରଣ ସହ ବୁଝାଅ ।
Answer:
(i) ଯେଉଁ ଶ୍ରେଣୀରେ ଥ‌ିବା ଜୈବ ଯୌଗିକଗୁଡ଼ିକର ସମାନ ସଂରଚନା, ସମାନ ସକ୍ରିୟ ଓ ସମାନ ରାସାୟନିକ ଧର୍ମ ଥାଏ । ସେହି ଶ୍ରେଣୀକୁ ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ କୁହାଯାଏ ।

(ii) ଏହି ଶ୍ରେଣୀରେ ଥ‌ିବା ପ୍ରତ୍ୟେକ ଯୌଗିକ ତା’ର ପୂର୍ବବର୍ତୀ ଓ ପରବର୍ତ୍ତୀ ଯୌଗିକଠାରୁ – CH2 ଗ୍ରୁପ୍ ଦ୍ବାରା ଭିନ୍ନ ହୋଇଥାଏ ।

ଉଦାହରଣ :
CH3OH (ମିଥାନଲ୍) → CH3OH
C2H5OH (ଇଥାନଲ୍) → CH3CH2OH
C3H7OH (ପ୍ରୋପାନଲ୍) → CH3CH2CH2OH
C4H9OH (ବ୍ୟୁଟାନଲ୍) → CH3CH2CH2CH2OH
ଇତ୍ୟାଦି ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ ଗଠନ କରନ୍ତି ।

Question 7.
ଇଥାନଲ୍ ଓ ଇଥାନୋଇକ୍ ଏସିଡ୍ ମଧ୍ୟରେ ଭୌତିକ ଓ ରାସାୟନିକ ଧର୍ମରେ ପ୍ରଭେଦ ଲେଖ ।
Answer:
ଭୌତିକ ଧର୍ମ
ଇଥାନଲ୍:

  • ଇଥାନଲ୍ ଅମ୍ଳ କିମ୍ବା କ୍ଷାର ନୁହେଁ, ଏହା ପ୍ରଶମିତ । ଅଟେ । ଉଭୟ ଲିଗ୍‌ସ୍ କାଗଜର କୌଣସି ରଙ୍ଗର ପରିବର୍ତ୍ତନ କରେ ନାହିଁ ।
  • ଏହା ଅନେକ ଜୈବ ଯୌଗିକ ପାଇଁ ଏକ ଉତ୍କୃଷ୍ଟ
  • ଇଥାନଲ୍‌ର ଗଳନାଙ୍କ 156 K ।
  • ସ୍ଫୁଟନାଙ୍କ 351 K
  • ଥଣ୍ଡା ଜଳବାୟୁରେ ଅର୍ଥାତ୍ ଶୀତଋତୁରେ ଏହା ଘନୀଭୂତ | ହୁଏ ନାହିଁ ।
  • ଇଥାନଲ୍‌ର ସ୍ବାଦ ପୋଡ଼ିଗଲା ଭଳି ଲାଗେ ।
  • ଏହା ତୀବ୍ର ଗନ୍ଧଯୁକ୍ତ ନୁହେଁ |

ଇଥାନୋଇକ୍ ଏସିଡ୍ :

  • ଇଥାନୋଇକ୍ ଏସିଡ୍ ନୀଳ ଲିଟ୍‌ସ୍‌କୁ ନାଲି କରିଥାଏ ଅର୍ଥାତ ଏହା ଅମ୍ଳୀୟ ।
  • ଏହା ଉତ୍ତମ ଦ୍ରାବକ ନୁହେଁ । ଦ୍ରାବକ ।
  • ଇଥାନୋଇକ୍ ଏସିଡ୍‌ର ଗଳନାଙ୍କ 290 K ।
  • ଏହାର ସ୍ଫୁଟନାଙ୍କ 391 K ।
  • ଥଣ୍ଡା ବାୟୁରେ ଏହା ଘନୀଭୂତ ହୁଏ ।
  • ଏହାର ସ୍ବାଦ ଖଟା ।
  • ଏହା ତୀବ୍ର ଗନ୍ଧଯୁକ୍ତ ଅଟେ ।

ରାସାୟନିକ ଧର୍ମ :
ଇଥାନଲ୍:
(i) ଇଥାନଲ୍ ସୋଡ଼ିୟମ ସହ ପ୍ରତିକ୍ରିୟା କରି ହାଇଡ୍ରୋଜେନ୍ ଗ୍ୟାସ୍ ନିର୍ଗତ କରେ ।
2Na + 2CH3 CH2OH → 2CH3CHO – Na + H2

(ii) ଇଥାନଲ୍‌କୁ ଅଧିକ ପରିମାଣ ଗାଢ଼ ସଲ୍‌ଫ୍ୟୁରିକ୍ ଏସିଡ୍ ସହିତ 443Kରେ ଉତ୍ତପ୍ତକଲେ ଇଥାନଲ ଅଣୁରୁ ଗୋଟିଏ ଜଳ ଅଣୁ ବାହାରି ଏଥୁନ ସୃଷ୍ଟି ହୁଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-4

(iii) ଇଥାନଲ ସୋଡ଼ିୟମ କାର୍ବୋନେଟ୍ ବା ସୋଡ଼ିୟମ୍ ବାଇକାର୍ବୋନେଟ୍ ସହ ପ୍ରତିକ୍ରିୟା କରେ ନାହିଁ ।

ଇଥାନୋଇକ୍ ଏସିଡ୍:
(i) ଇଥାନୋଇକ୍ ଏସିଡ୍ ସୋଡ଼ିୟମ ହାଇଡ୍ରକ୍‌ସାଇଡ଼ ସହ ପ୍ରତିକ୍ରିୟା କରି ଲବଣ ଓ ଜଳ ସୃଷ୍ଟିକରେ ।
NaOH + CH3COOH → CH3COONa + H2O

(ii) ଏସିଟିକ୍ ଏସିଡ଼୍କୁ ଫସ୍‌ଫରସ୍ ପେଣ୍ଟକ୍‌ସାଇଡ ସହିତ ଉତ୍ତପ୍ତ କଲେ ଦୁଇଟି ଏସିଡ୍ ଅଣୁରୁ ଗୋଟିଏ ଜଳ ଅଣୁ ଅପସାରିତ ହୁଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-5

(iii) ଏହା ସୋଡ଼ିୟମ କାର୍ବୋନେଟ୍ ଓ ସୋଡ଼ିୟମ୍‌ କାର୍ବୋନେଟ୍ ସହ ପ୍ରତିକ୍ରିୟା କରେ ।
2CH3COOH + Na2CO3 → CH3COONa + H2O + CO2
CH3COOH + NaHCO3 → CH3COONa + H2 + CO2

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 8.
ଜଳରେ ସାବୁନ ମିଶାଇଲେ ମିସେଲ କାହିଁକ ସୃଷ୍ଟି ହୁଏ ବୁଝାଅ । ଅନ୍ୟ ଦ୍ରାବକ ଯଥା : ଇଥାନଲରେ ମଧ୍ୟ ମିସେଲ୍ ସୃଷ୍ଟି ହେବ କି ?
Answer:
(i) ସାବୁନର ଅଣୁ ଗୁଡ଼ିକ ଦୀର୍ଘ-ଶୃଙ୍ଖଳ କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍‌ର ସୋଡ଼ିୟମ୍ କିମ୍ବା ପୋଟାସିୟମ୍ ଲବଣ । ସାବୁନ ଅଣୁର ଆୟନିକ ପ୍ରାନ୍ତଟି ଜଳରେ ଦ୍ରବୀଭୂତ ହେଉଥ‌ିବା ବେଳେ କାର୍ବନ ଶୃଙ୍ଖଳଟି ତେଲରେ ଦ୍ରବୀଭୂତ ହୁଏ । ତଦନୁଯାୟୀ ସାବୁନ୍ ଅଣୁଗୁଡ଼ିକ ଏକ ସଂରଚନା ସୃଷ୍ଟି କରିଥାନ୍ତି । ଏହାକୁ ମିସେଲ୍ କୁହାଯାଏ ।

(ii) ଏହି ଅଣୁର ଗୋଟିଏ ପ୍ରାନ୍ତ ତେଲର ଛୋଟବିନ୍ଦୁ ଆଡ଼କୁ ରହୁଥ‌ିବା ବେଳେ ଆୟନିକ୍ ପ୍ରାନ୍ତଟି ବାହାରକୁ ମୁହଁ କରିଥାଏ । ଏହା ଜଳରେ ଏକ ଅପଦ୍ରବ ସୃଷ୍ଟିକରେ । କିନ୍ତୁ ସାବୁନ ଇଥାନଲ୍‌ରେ ଦ୍ରବଣୀୟ, ତେଣୁ ମିସେଲ୍ ସୃଷ୍ଟି ହୁଏ ନାହିଁ ।

Question 9.
କାର୍ବନ ଏବଂ ଏହାର ଯୌଗିକକୁ ଅଧିକାଂଶ ପ୍ରୟୋଗରେ ଇନ୍ଧନ ରୂପେ ବ୍ୟବହାର କରାଯାଏ କାହିଁକି ?
Answer:
(i) କାର୍ବନର ଯେକୌଣସି ରୂପ ଅକ୍‌ସିଜେନ୍‌ରେ ଜଳିଲେ କାର୍ବନ ଡାଇଅକ୍‌ସାଇଡ୍ ସୃଷ୍ଟି ହେବା ସହିତ ତାପ ଓ ଆଲୋକ ଉତ୍ପନ୍ନ ହୁଏ ।

(ii) ଅଧ୍ୟାକାଂଶ କାର୍ବନ ଯୌଗିକ ମଧ୍ୟ ଦହନ ପ୍ରତିକ୍ରିୟାରେ ବହୁପରିମାଣର ତାପଶକ୍ତି ଓ ଆଲୋକ ଶକ୍ତି ସୃଷ୍ଟି କରିଥାନ୍ତି । ଏକକ ବସ୍ତୁତ୍ଵ ବିଶିଷ୍ଟ କାର୍ବନ ଯୌଗିକରୁ ଅନ୍ୟ ତୁଳନାରେ ଅଧିକ ଶକ୍ତି ମିଳେ ।

Question 10.
ଖରଜଳ ସହିତ ସାବୁନ କିପରି ପ୍ରତିକ୍ରିୟା କରେ ?
Answer:
ଖରଜଳରେ କ୍ୟାଲସିୟମ୍ ଓ ମ୍ୟାଗ୍ନେସିୟମ୍‌ର ଲବଣ ଥାଏ । ସାବୁନ ଅଣୁ ସହିତ କ୍ୟାଲସିୟମ୍ ଓ ମ୍ୟାଗ୍ନେସିୟମ୍ ଲବଣ ପ୍ରତିକ୍ରିୟାକରି ଧଳା ଅଦ୍ରବଣୀୟ ପଦାର୍ଥ (କ୍ୟାଲସିୟମ୍ ଓ ମ୍ୟାଗ୍ନେସିୟମ୍ ଲବଣ) ସୃଷ୍ଟିକରେ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-6

Question 11.
ସାବୁନକୁ ଲାଲ ଏବଂ ନୀଳ ଲିଟମସ୍ କାଗଜରେ ପରୀକ୍ଷା କଲେ କି ପରିବର୍ତ୍ତନ ଦେଖାଯିବ ?
Answer:
ସାବୁନ୍ କ୍ଷାରୀୟ ଅଟେ । ଏହା ଲାଲ୍ ଲିଟ୍‌ସ୍କୁ ନୀଳ କରେ; କିନ୍ତୁ ନୀଳ ଲିଟମସ୍‌ର କୌଣସି ପରିବର୍ତ୍ତନ କରେ ନାହିଁ ।

Question 12.
ହାଇଡ୍ରୋଜେନୀକରଣ କ’ଣ ? ଶିଳ୍ପରେ ଏହାର ପ୍ରୟୋଗ କ’ଣ ?
Answer:
ଉତ୍ପ୍ରେରକ ଉପସ୍ଥିତିରେ ଅପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ସହ ହାଇଡ୍ରୋଜେନର ଯୋଗକୁ ହାଇଡ୍ରୋଜେନୀକରଣ କହନ୍ତି ।

ଶିଳ୍ପରେ ପ୍ରୟୋଗ :
ବନସ୍ପତି ତେଲଗୁଡ଼ିକରେ ସାଧାରଣତଃ ଅପୃକ୍ତ କାର୍ବନ ଶୃଙ୍ଖଳ ନିକେଲ୍‌ ଉତ୍ପ୍ରେରକ ଉପସ୍ଥିତିରେ ହାଇଡ୍ରୋଜେନୀକରଣ କରାଯାଇ ପୃକ୍ତ କାର୍ବନ ଚେନ୍ ଗଠନ କରେ, ଯାହାକି ପଶୁ ଚର୍ବି ବା ଘିଅ ଅଟେ । ତେଣୁ କଳକାରଖାନାରେ ହାଇଡ୍ରୋଜେନୀକରଣ ପଦ୍ଧତିରେ ବନସ୍ପତି ତେଲ ବା ଘିଅ ପ୍ରସ୍ତୁତ କରାଯାଏ ।

Question 13.
ନିମ୍ନରେ ଦିଆଯାଇଥିବା ହାଇଡ୍ରୋକାର୍ବନଗୁଡ଼ିକ ମଧ୍ୟରୁ କେଉଁଗୁଡ଼ିକ ଯୋଗ ପ୍ରତିକ୍ରିୟା ଦେଇଥା’ନ୍ତି ? C2H6, C3H8, C3H6, C2H2, ଏବଂ CH4,
Answer:
C3H6 ଏବଂ C2H2,

Question 14.
ଲହୁଣୀ ଏବଂ ରୋଷେଇ ପାଇଁ ବ୍ୟବହୃତ ତେଲ ମଧ୍ଯରେ ରାସାୟନିକ ଧର୍ମରେ ପ୍ରଭେଦ ନିର୍ଣ୍ଣୟ କରିବାକୁ ଏକ ପରୀକ୍ଷା ଦର୍ଶାଅ ।
Answer:
ଲହୁଣି ପୃକ୍ତ (Saturated) ହାଇଡ୍ରୋକାର୍ବନ ଅଟେ । ବ୍ରୋମିନ୍ ଲହୁଣିରେ ମିଶାଇଲେ ବ୍ରୋମିନ୍‌ର ବାଦାମୀ ରଙ୍ଗରେ କୌଣସି ପରିବର୍ତ୍ତନ ହୁଏନାହିଁ । କାରଣ ବ୍ରୋମିନ ପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ସହ ପ୍ରତିକ୍ରିୟା କରେ ନାହିଁ କିନ୍ତୁ ରୋଷେଇ ପାଇଁ ବ୍ୟବହୃତ ତେଲ ଅପୃକ୍ତ (unsturated) ହାଇଡ୍ରୋକାର୍ବନ ଅଟେ । ବ୍ରୋମିନ୍‌ର କିଛି ବୁନ୍ଦା ମିଶାଇଲେ ବାଦାମୀ ରଙ୍ଗ ବର୍ଣ୍ଣହୀନ ହୁଏ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 15.
ସାବୁନ କିପରି ସଫାକରେ ବୁଝାଅ ।
(i) ସାବୁନ ଅଣୁରେ ଥ‌ିବା ଦୁଇଟି ପ୍ରାନ୍ତର ଧର୍ମ ଭିନ୍ନ । ଗୋଟିଏ ହେଉଛି ଜଳାସକ୍ତ ଅନ୍ୟ ପ୍ରାନ୍ତଟିଏ ଜଳାତଙ୍କୀ ଜଳାସକ୍ର (Hydrophobic) ଏବଂ ଅନ୍ୟ ପ୍ରାନ୍ତ୍ରଟିଏ ଜଳାତଙ୍କ1 (Hydrophobic) |

(ii)
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-7 ହୋଇଥାଏ ।

(iii)
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-8
(iv) ଜଳର ପୃଷ୍ଠରେ ସାବୁନ ରହିଲେ ଜଳାତଙ୍କୀ ଲାଞ୍ଜ ଜଳରେ ଦ୍ରବୀଭୂତ ହେବ ନାହିଁ ଏବଂ ସାବୁନଟିର ଆୟନିକ ପ୍ରାନ୍ତ ସହ ଜଳରେ ଏବଂ ହାଇଡ୍ରୋକାର୍ବନ ‘ଲାଞ୍ଜ’ ଜଳ ବାହାରକୁ ବଢ଼ିଆସି ଜଳର ପୃଷ୍ଠ ନିକଟରେ ଶ୍ରେଣୀବଦ୍ଧ ଭାବେ ସଜାଇ ହୋଇ ରହେ ।

(v) ଜଳଭିତରେ ଏହି ଅଣୁଗୁଡ଼ିକର ଏକ ଅନନ୍ୟ ଅଭିବିନ୍ୟାସ ରହିଛି ଯାହା ହାଇଡ୍ରୋକାର୍ବନ ଅଂଶଗୁଡ଼ିକୁ ଜଳଠାରୁ ଅଲଗା ରଖେ ।

(vi) ଅଣୁ ପେନ୍ଥାମାନ ସୃଷ୍ଟି କରିବା ଦ୍ଵାରା ଏହା ସଂପାଦିତ ହୋଇଥାଏ ।

(vii) ଜଳାତଙ୍କୀ ଲାଞ୍ଜଗୁଡ଼ିକ ଅଣୁପେନ୍ଥାର ଭିତର ପାର୍ଶ୍ବରେ ଏବଂ ଆୟନିକ ପ୍ରାନ୍ତ ଗୁଡ଼ିକ ପେନ୍ଥାର ଉପରି ଭାଗରେ ରହିଥାଏ ।

(vi) ଏହି ଗଠନକୁ ମିସେଲ୍ କୁହାଯାଏ ।

(ix) ମିସେଲ୍‌ର କେନ୍ଦ୍ରରେ ତୈଳାକ୍ତ ମଇଳା ସଂଗୃହୀତ ହୁଏ ।

(x) ମିସେଲ୍ ଦ୍ରବଣରେ କଲଏଡ୍ ରୂପରେ ରହେ ଏବଂ ଆୟନ-ଆୟନ ବିକର୍ଷଣ ଯୋଗୁଁ ଏକତ୍ରିତ ହୋଇ ଅବକ୍ଷେପିତ ହୁଏ ନାହିଁ ।

(xi) ତେଣୁ ଲୁଗାକୁ ଧୋଇଦେଲେ ମିସେଲ୍‌ରେ ରହିଥିବା ମଇଳା ମଧ୍ୟ ସହଜରେ ଜଳ ସହିତ ପଦାକୁ ବାହାରି ଆସେ ।

ବିଶେଷ ଦ୍ରଷ୍ଟବ୍ୟ :
ଏହି ଅଧ୍ୟାୟରେ (*) ତାରକା ଚିହ୍ନିତ ତଥ୍ୟ, ପ୍ରଶ୍ନ ଓ ବାକ୍ସ ଅନ୍ତର୍ଗତ ବିଷୟବସ୍ତୁ ସମ୍ପର୍କିତ ତଥ୍ୟ ପରୀକ୍ଷାରେ ଆସିବ ନାହିଁ ।

ପ୍ରଶ୍ନବଳୀ ଓ ଉତ୍ତର:

Question 1.
କାର୍ବନ ଡାଇଅକ୍‌ସାଇଡ୍ (ସଙ୍କେତ CO2)ର ଇଲେକ୍‌ଟ୍ରନ ଡଟ୍ ସଂରଚନା କ’ଣ ହେବ ?
Answer:
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-9

Question 2.
ଆଠଟି ସଲ୍ଫର ପରମାଣୁରେ ଗଠିତ ଏକ ସଲ୍ଫର ଅଣୁର ଇଲେକ୍‌ଟ୍ରନ ଡଟ୍ ସଂରଚନା କ’ଣ ହେବ ?
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-10

Question 3.
ପେଣ୍ଟେନ ପାଇଁ ତୁମେ କେତୋଟି ସଂରଚନାତ୍ମକ ଆଇସୋମର୍ ଚିତ୍ର କରିପାରିବ ?
Answer:
ପେଣ୍ଟେନ୍ ପାଇଁ ତିନୋଟି ସଂରଚନାତ୍ମକ ଆଇସୋମ୍‌ର ଚିତ୍ର ଅଙ୍କନ କରାଯାଇଛି –
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-11

Question 4.
ଆମ ଚାରିପଟେ ଦେଖୁଥ‌ିବା କାର୍ବନ ଯୌଗିକର ବହୁଳତା ପାଇଁ କାର୍ବନର କେଉଁ ଦୁଇଟି ପ୍ରକୃତି ଦାୟୀ ?
Answer:
(i) କାଟିନେସନ୍ : କାର୍ବନର କ୍ଷୁଦ୍ର ଆକାର ଓ ଉଚ୍ଚ ବିଦ୍ୟୁତ୍ ଋଣାତ୍ମକତା ଗୁଣ ଯୋଗୁଁ ଏହା ଅନ୍ୟ କାର୍ବନ ପରମାଣୁଗୁଡ଼ିକ ସହିତ ସ୍ଥାୟୀ ବନ୍ଧ ଗଠନ କରିପାରେ । ଯୌଗିକଗୁଡ଼ିକର ସଂରଚନା ସଳଖ ଚେନ, ଶାଖା ଚେନ, କିମ୍ବା ବକ୍ରାକାର ଚେନ ହୋଇପାରେ ।

(ii) କାର୍ବନର ଚତୁଃସଂଯୋଗ୍ୟତା : କାର୍ବନ ଯୌଗିକର କକ୍ଷରେ 4ଟି ଇଲେକ୍‌ଟ୍ରନ୍‌ ଥିବାରୁ ଏହି ଇଲେକ୍‌ଟ୍ରଗୁଡ଼ିକ ଅନ୍ୟ 4ଟି କାର୍ବନ ପରମାଣୁ ସହ କିମ୍ବା ହାଇଡ୍ରୋଜେନ୍, ଅକ୍‌ସିଜେନ୍, ନାଇଟ୍ରୋଜେନ୍, ସଲ୍‌ଫର୍‌ ପରି ଅନ୍ୟ ମୌଳିକଗୁଡ଼ିକ ସହ ସହଭାଜନ କରିପାରେ । ତେଣୁ କାର୍ବନ ଯୌଗିକର ସଂଖ୍ୟା ବୃଦ୍ଧିପାଏ

Question 5.
ସାଇକ୍ଳୋପେଣ୍ଟେନର ସଙ୍କେତ ଏବଂ ଇଲେକ୍‌ଟ୍ରନ ଡଟ୍ ସଂରଚନା କ’ଣ ହେବ ?
Answer:
ଫଂକେତ:
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-12

Question 6.
ନିମ୍ନଲିଖୂତ ଯୌଗିକଗୁଡ଼ିକ ପାଇଁ ସଂରଚନା ଚିତ୍ର ଦିଅ ।
(i) ଇଥାନୋଇକ୍ ଏସିଡ଼୍
(ii) ବ୍ରୋମୋପେଣ୍ଟନ୍‌
(iii) ବ୍ୟୁଟାନୋନ୍
(iv) ହେକ୍ସାନାଲ
Answer:
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-13

Question 7.
ନିମ୍ନଲିଖୂ ଯୌଗିକଗୁଡ଼ିକୁ କିପରି ନାମକରଣ କରିବ ?
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-14
Answer:
(i) ବ୍ରୋମୋଇଥେନ୍
(ii) ମିଥାନଲ୍
(iii) ହେକ୍‌ସାଇନ୍

Question 8.
ଇଥାନଲ୍‌ରୁ ଇଥାନୋଇକ୍ ଏସିଡ୍କୁ ରୂପାନ୍ତର କାହିଁକି ‘କ ଜାରଣ ପ୍ରତିକ୍ରିୟା ?
Answer:
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-15
ହାଇଡ୍ରୋଜେନ ପରମାଣୁ ସଂଖ୍ୟାର ହ୍ରାସ ଘଟିଛି, ତେଣୁ ଏହା ଏକ ଜାରଣ ପ୍ରତିକ୍ରିୟା ।

Question 9.
ଝଳାଇ ପାଇଁ ଅକ୍‌ସିଜେନ୍ ଓ ଇଥାଇନ୍‌ର ଏକ ମିଶ୍ରଣ ଜଳାଯାଏ I ଇଥାଇନ୍ ଓ ବାୟୁର ମିଶ୍ରଣ ବ୍ୟବହାର କରାଯାଏ ନାହିଁ କାହିଁକି କହିପାରିବ ?
Answer:
ବାୟୁରେ ଯବକ୍ଷାରଜାନ ସହିତ ନିଷ୍କ୍ରିୟ ଗ୍ୟାସ୍ ଅଛି, ଯାହାକି ଇଥାଇନ୍ ଜଳିବା ପାଇଁ ଯେଉଁ ଅମ୍ଳଜାନ ଆବଶ୍ୟକ ସେଗୁଡ଼ିକ ପ୍ରତିରୋଧ କରିଥାନ୍ତି । ତେଣୁ ବାୟୁ ଓ ଇଥାଇନ୍‌ର ମିଶ୍ରଣ ବ୍ୟବହାର କରାଯାଏ ନାହିଁ ।

Question 10.
ପରୀକ୍ଷା କରି ଆଲ୍‌କହଲ ଏବଂ କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍ ମଧ୍ଯରେ ପାର୍ଥକ୍ୟ କିପରି ଜାଣିବ ?
Answer:
କ୍ଷାରୀୟ ପୋଟାସିୟମ ପରମାଙ୍ଗାନେଟ୍ ଟେଷ୍ଟ : ଆଲ୍‌କହଲ ଓ କାର୍ବୋସିଲିକ୍ ଭିନ୍ନ ଭିନ୍ନ ପରୀକ୍ଷାନଳୀ ଦୁଇଟିରେ ନିଅ ଏବଂ କିଛି ବୁନ୍ଦା କ୍ଷାରୀୟ ପୋଟାସିୟମ୍ ପରମାଙ୍ଗାନେଟ୍ ଦ୍ରବଣ ପକାଅ ଓ ଗରମ୍ କର ପୋଟାସିୟମ୍ ପରମାଙ୍ଗାନେଟ୍‌ର ଗୋଲାପୀ ରଙ୍ଗ ରହିଲେ ତାହା ଆଲ୍‌କହଲ, ଅନ୍ୟଥା ତାହା କାର୍ବୋକସିଲିକ୍ ଏସିଡ୍ ।

Question 11.
କାରଣ କ’ଣ ?
Answer:
NaHCO ଦ୍ଵାରା ପରୀକ୍ଷା – ଦୁଇଟି ଭିନ୍ନ ଭିନ୍ନ ପରୀକ୍ଷାନଳୀରେ ଆଲ୍‌କହଲ ଓ କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍ ନେଇ କିଛି NaHCO3 ର ଗାଢ଼ ଦ୍ରବଣ ମିଶାଅ । ଯେଉଁ ପରୀକ୍ଷାନଳୀରେ ଗାଢ଼ ଧୂଆଁଳିଆ CO2 ଗ୍ୟାସ ବାହାରିବ ସେହି ପରୀକ୍ଷାନଳୀରେ କାର୍ବୋକସିଲିକ୍ ଏସିଡ୍ ଅଛି ।

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

Question 12.
ଡିଟରଜେଣ୍ଟ ବ୍ୟବହାର କରି ଜଳ ଖର କି ନୁହେଁ ଜାଣିବାକୁ ତୁମେ ସମର୍ଥ ହୋଇପାରିବ କି ?
Answer:
ନାଁ, କାରଣ ଖରଜଳ ଓ ମୃଦୁଜଳ ଉଭୟରେ ଡିଟରଜେଣ୍ଟ ସମାନ ଭାବରେ କାର୍ଯ୍ୟ କରେ ।

Question 13.
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-16
ଦେଇସାରି ସେମାନେ ଲୁଗାକୁ ପଥର ଉପରେ ବାଡ଼େଇ ଥା’ନ୍ତି କିମ୍ବା ଏକ ଦଣ୍ଡରେ ବାଡ଼େଇଥା’ନ୍ତି ବ୍ରସ୍‌ରେ ଘଷିଥା’ନ୍ତି କିମ୍ବା ୱାସିଂମେସିନ୍‌ରେ ମନ୍ଥନ (agitate) କରିଥା’ନ୍ତି । ସଫାଲୁଗା ପାଇବା ପାଇଁ ମନ୍ଥନ କାହିଁକି ଆବଶ୍ୟକ ?
Answer:
ମଇଳା ସହିତ ପ୍ରତିକ୍ରିୟା କରି ସାବୁନ ଅଣୁଗୁଡ଼ିକ ମିସେଲ୍‌ ସୃଷ୍ଟି କରନ୍ତି ଓ ଯେଉଁ ଅପଦ୍ରବ ସୃଷ୍ଟିହୁଏ ପାଣିରେ କିଛି ଧୋଇ ହୋଇଯାଏ ଆଉ କିଛି ଲୁଗାର ଉପର ସ୍ତରରେ ହାଲୁକା ଭାବେ ଲାଗିରହେ । ତେଣୁ ସାବୁନ ଦେଇ ସାରି ସେମାନେ ଲୁଗାକୁ ପଥର ଉପରେ ବାଡ଼େଇଥାନ୍ତି କିମ୍ବା ଏକ ଦଣ୍ଡରେ ବାଡ଼େଇଥାନ୍ତି ବା ମନ୍ଥନ କରିଥାନ୍ତି |

କାର୍ଯ୍ୟାବଳୀ (Activity):

କାର୍ଯ୍ୟାବଳୀ – 1 (Activity – 1):
(i) ସକାଳୁ ତୁମେ ବ୍ୟବହାର କରିଥିବା କିମ୍ବା ଖାଇଥିବା ଦଶଟି ଜିନିଷର ଏକ ତାଲିକା କର ।
ଏହି ତାଲିକା ସହ ତୁମ ସହପାଠୀମାନେ କରିଥିବା ତାଲିକାକୁ ଏକାଠି କର ଏବଂ ତା’ପରେ ଦିଆଯାଇଥ‌ିବା ସାରଣୀ ଭିତରେ ସେହି ଦ୍ରବ୍ୟଗୁଡ଼ିକୁ ତାଲିକାଭୁକ୍ତ କର । ଯେଉଁ ଦ୍ରବ୍ୟ ଏକରୁ ଅଧିକ ପଦାର୍ଥରୁ ପ୍ରସ୍ତୁତ ହେଉଛି, ସେଗୁଡ଼ିକୁ ସଂପୃକ୍ତ ସ୍ତମ୍ଭରେ ରଖ ।
ଡ :
ସକାଳୁ ବ୍ୟବହାର କରିଥିବା କିମ୍ବା ଖାଇଥିବା ଦଶଟି ଜିନିଷ ହେଲା
ବ୍ୟବହାର କରିଥିବା ଜିନିଷ: ସାବୁନ୍, ତେଲ, କାଗଜ, ଜୋତା ପଲିସ୍, ପ୍ଲାଷ୍ଟିକ ମର, ବହି, ଖବରକାଗଜ, ଷ୍ଟିଲ୍ ମର୍ ।
ଖାଇଥ‌ିବା ଜିନିଷ – କ୍ଷୀର, ଚା, ଅଣ୍ଡା, ପାଉଁରୁଟି, ଭାତ, ଡାଲି, ଔଷଧ ।

(ii)
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-17

ପର୍ଯ୍ୟବେକ୍ଷଣ:
କେବଳ ଜଳ ରନ୍ଧନପାତ୍ର, (ଯେଉଁଗୁଡ଼ିକ ଧାତୁ, କାଚ କିମ୍ବା ମାଟିରେ ତିଆରି) ଛାଡ଼ି ପ୍ରାୟ ଅନ୍ୟ ସମସ୍ତ ଜିନିଷରେ କାର୍ବନ ଅଛି ।

ସିଦ୍ଧାନ୍ତ:
ଆମେ ଦୈନନ୍ଦିନ ଜୀବନରେ ବ୍ୟବହାର କରୁଥିବା ଅଧିକାଂଶ ଜିନିଷ କାର୍ବନରେ ତିଆରି ।

କାର୍ଯ୍ୟାବଳୀ – 2 (Activity – 2):

ତଳେ ଦିଆଯାଇଥ‌ିବା ଯୋଡ଼ିଗୁଡ଼ିକ ପାଇଁ ସଙ୍କେତଗୁଡ଼ିକ ମଧ୍ୟରେ ଏବଂ ଆଣବିକ ବସ୍ତୁତ୍ଵ ମଧ୍ୟରେ ପ୍ରଭେଦ କଳନା କର ।
(a) CH3 OH ଏବଂ C2H5 OH
(b) C2H5 OH ଏବଂ C3 H7OH
(c) C3H7 OH ଏବଂ C4H9 OH
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-18
ଏହି ତିନୋଟିରେ କିଛି ସାଦୃଶ୍ୟ ଅଛି କି ?
ଉ :
ସମସ୍ତଙ୍କର ସକ୍ରିୟ ଗ୍ରୁପ୍ ଏକ ।

ଗୋଟିଏ ଶ୍ରେଣୀ (Family) ପାଇବା ପାଇଁ ଏହି ଆଲକହଲଗୁଡ଼ିକୁ କାର୍ଟୁନ ପରମାଣୁର ବର୍ଦ୍ଧିତ କ୍ରମରେ ସଜାଅ ।
ଊ :
CH3OH, C2H5OH, C3H8OH, C4H9OH

ସାରଣୀର ଅନ୍ୟ ସକ୍ରିୟଗ୍ରୁପ୍ ପାଇଁ ଚାରୋଟି କାର୍ବନ ପର୍ଯ୍ୟନ୍ତ ଯୌଗିକଗୁଡ଼ିକର ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ ଲେଖ ।
ଊ :
କ୍ଲୋରୋ ହୋମୋଲୋଗସ୍ ଶ୍ରେଣୀ : CH3CI, C2H5CI, C3H7Cl, C4H9Cl
ଆଲ୍‌ହାଇଡ଼ ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ : CH3CHO, C2H5CHO, C3H7CHO
କିଟୋନ୍ ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ : C2H6CO, C3H8CO
କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍ ହୋମୋଲଗସ୍ ଶ୍ରେଣୀ : CH3COOH, C2H5COOH, C3H7COOH

କାର୍ଯ୍ୟାବଳୀ -3 (Activity-3)

ଆବଶ୍ୟକ ଉପକରଣ :
ଗୋଟିଏ ଚାମଚ, କିଛି କାର୍ବନ ଯୌଗିକ (ଗନ୍ଧକର୍ପୂର, କର୍ପୂର, ଆଲ୍‌କହଲ) ।

ପରୀକ୍ଷଣ :
ଗୋଟିଏ ଚାମଚରେ କେତୋଟି କାର୍ବନ ଯୌଗିକ (ଗନ୍ଧକର୍ପୂର, କର୍ପୂର, ଆଲକହଲ) ଗୋଟିଏ ପରେ ଗୋଟିଏ ନିଅ ଏବଂ ଜଳାଅ ।

ପର୍ଯ୍ୟବେକ୍ଷଣ :
(a) ଅଗ୍ନିଶିଖା ଉପରେ ଗୋଟିଏ ଧାତବ ଥାଳି ରଖ । ଆଲ୍‌କହଲ ଭଳି ପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ଜଳିଲେ ସ୍ୱଚ୍ଛ ଶିଖା ଦେଇଥାଏ ।
(b) ଗନ୍ଧକର୍ପୂର ଭଳି ଅପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ଜଳିଲେ କଳାଧୂଆଁ ସହିତ ହଳଦିଆ ରଙ୍ଗର ଶିଖା ଦେବ ଏବଂ ଧାତବ ଥାଳିରେ କଳାକଣିକା ଜମିଯିବ ।

ସିଦ୍ଧାନ୍ତ:
ପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ଜଳିଲେ ସ୍ବଚ୍ଛ ଶିଖା ଦିଏ । ଅପୃକ୍ତ ହାଇଡ୍ରୋକାର୍ବନ ଜଳିଲେ କଳାଧୂଆଁ ଓ ହଳଦିଆ ରଙ୍ଗର ଶିଖା ଦେବ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -4 (Activity-4)

ପରୀକ୍ଷଣ:
ଗୋଟିଏ ବୁନ୍‌ସେନ୍ ବର୍ଣ୍ଣର ଜଳାଅ ଏବଂ ବିଭିନ୍ନ ପ୍ରକାର ଶିଖା ବା ଧୂଆଁର ଉପସ୍ଥିତି ପାଇବା ପାଇଁ ଏହାର ନିମ୍ନଅଂଶରେ ଥ‌ିବା ବାୟୁଛିଦ୍ର (Airhole)କୁ ନିୟନ୍ତ୍ରଣ କର ।

ପର୍ଯ୍ୟବେକ୍ଷଣ:
(a) କଳାଧୂଆଁ ଓ ହଳଦିଆ ଅଗ୍ନିଶିଖା ମିଳିବ ଯେତେବେଳେ ବର୍ଣ୍ଣରର ନିମ୍ନ ଅଂଶରେ ଥ‌ିବା ବାୟୁଛିଦ୍ରକୁ ନିୟନ୍ତ୍ରଣ କରିବା ଫଳରେ ଅମ୍ଳଜାନର ପରିମାଣ ହ୍ରାସପାଇବ ।
(b) ବର୍ଣ୍ଣରର ନିମ୍ନ ଅଂଶରେ ଥ‌ିବା ବାୟୁଛିଦ୍ର ସମ୍ପୂର୍ଣ୍ଣ ନିୟନ୍ତ୍ରଣମୁକ୍ତ ରହିଲେ ପ୍ରଚୁର ପରିମାଣର ଅମ୍ଳଜାନ ପ୍ରବେଶ କରିବ ଏବଂ ସମ୍ପୂର୍ଣ ଜାରଣ ହେବା ଫଳରେ ନୀଳ ଅଗ୍ନି ଶିଖା ଦେଖାଯିବ ।

ସିଦ୍ଧାନ୍ତ:
ଯଥେଷ୍ଟ ପରିମାଣର ଅକ୍‌ସିଜେନ୍‌ରେ ଜଳିଲେ ସ୍ବଚ୍ଛ ନୀଳଶିଖା ମିଳିବ ଏବଂ ସୀମିତ ବାୟୁ (ଅକ୍‌ସିଜେନ)ରେ

କାର୍ଯ୍ୟାବଳୀ -5 (Activity-5)

ଆବଶ୍ୟକ ଉପକରଣ:
ଗୋଟିଏ ପରୀକ୍ଷାନଳୀ, 3 ମିଲି ଇଥାନଲ୍ , ଏକ ଜଳ ଉଷ୍ମକ (water bath), 5% କ୍ଷାରୀୟ ପୋଟାସିୟମ ପରମାଙ୍ଗାନେଟ୍ ଦ୍ରବଣ ।

ପରୀକ୍ଷଣ:
ଗୋଟିଏ ପରୀକ୍ଷାନଳୀରେ ପ୍ରାୟ 3 ମିଲି ଇଥାନଲ୍ ନିଅ ଏବଂ ଏହାକୁ ଧୀରେ ଧୀରେ ଉଷୁମ କର । 5% କ୍ଷାରୀୟ ପୋଟାସିୟମ୍ ପରମାଙ୍ଗାନେଟ୍ ଦ୍ରବଣକୁ ବୁନ୍ଦା ବୁନ୍ଦା କରି ପକାଅ ।

ପର୍ଯ୍ୟବେକ୍ଷଣ:
(a) 5 % କ୍ଷାରୀୟ ପୋଟାସିୟମ୍ ପରମାଙ୍ଗାନେଟ୍ ଦ୍ରବଣକୁ ବୁନ୍ଦା ବୁନ୍ଦା କରି ପକାଇଲେ ଗୋଲାପୀ ରଙ୍ଗ କ୍ରମଶଃ ଅଦୃଶ୍ୟ ହୋଇଯିବ ।
(b) ଯେତେବେଳେ ଅଧିକ KMnO4 ମିଶାଗଲା ସେତେବେଳେ ଇଥାନଲ୍ ଜାରଣ ହୋଇ ଇଥାନୋଇକ୍ ଅମ୍ଳରେ ପରିଣତ ହେଲା ଏବଂ ଅଧ୍ଵ KMnO4 ରଙ୍ଗ ସେହିଭଳି ରହିଲା ଓ ଅଦୃଶ୍ୟ ହେଲା ନାହିଁ ।

ସିଦ୍ଧାନ୍ତ:
କ୍ଷାରୀୟ KMnO4 ଦ୍ରବଣ ଇଥାନଲ୍‌କୁ ଜାରଣ କରେ ଏବଂ ନିଜେ ବିଜାରିତ ହୁଏ ।

କାର୍ଯ୍ୟାବଳୀ -6 (Activity-6)
ପରୀକ୍ଷଣ:
ଦୁଇଟି ଚାଉଳଦାନା ଆକାରର ଖଣ୍ଡେ ଛୋଟ ସୋଡ଼ିୟମକୁ ଇଥାନଲ (ବିଶୁଦ୍ଧ ଆଲକହଲ) ମଧ୍ୟରେ

ପର୍ଯ୍ୟବେକ୍ଷଣ:
ସୋଡ଼ିୟମ୍ ଧାତୁ ଅତ୍ୟନ୍ତ ପ୍ରତିକ୍ରିୟାଶୀଳ ଅଟେ । ବିଶୁଦ୍ଧ ଆଲ୍‌କହଲ ସହିତ ରାସାୟନିକ ପ୍ରତିକ୍ରିୟା କରି ସୋଡ଼ିୟମ୍‌ ଇଥକ୍‌ସାଇଡ ଓ ହାଇଡ୍ରୋଜେନ୍ ଗ୍ୟାସ୍ ଦେଇଥାଏ ।

2C2H5OH + 2Na → 2C2H5ONa + H2
ଗୋଟିଏ ଜଳୁଥ‌ିବା କାଠିକୁ ଗ୍ୟାସ୍ ପାଖକୁ ଆଣିଲେ ପପ୍ ଶବ୍ଦ କରି ଜଳିଉଠିବ ।

ଇଥାନୋଇକ୍ ଏସିଡ୍‌ର ସାଧା (Properties of Ethanoic Acid):
(i) ଇଥାନୋଇକ୍ ଏସିଡ୍କୁ ସାଧାରଣତଃ ଏସିଟିକ୍ ଏସିଡ୍ (acetic acid) କହନ୍ତି ଏବଂ ଏହା କାର୍ବୋକ୍‌ଲିକ୍

(ii) ଜଳରେ ଏସିଟିକ୍ ଏସିଡ୍‌ର 5-8% ଦ୍ରବଣକୁ ଭିନେଗାର କୁହାଯାଏ ଏବଂ ଏହାକୁ ଆଚାର ସଂରକ୍ଷଣ ପାଇଁ ବ୍ୟବହାର କରାଯାଏ ।

(iii)ବିଶୁଦ୍ଧ ଇଥାନୋଇକ୍ ଏସିଡ୍‌ର ଗଳନାଙ୍କ ହେଉଛି 290 K ।

(iv) ଏସିଟିକ୍ ଏସିଡ୍‌ର ଅନ୍ୟ ନାମ ଗ୍ଲାସିଆଲ୍ (Glacial) ଏସିଟିକ୍ ଏସିଡ୍ । କାରଣ ଏହା ଥଣ୍ଡାଜଳ ଓ ବାୟୁରେ ଅଧିକାଂଶ ସମୟରେ ଘନୀଭୂତ ହୋଇଯାଏ ।

(v) କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍ ଏକ ଦୁର୍ବଳ ଏସିଡ୍ ।

ଏଷ୍ଟରୀକରଣ ପ୍ରତିକ୍ରିୟା:
(i) ଗୋଟିଏ ଏସିଡ୍ ଏବଂ ଗୋଟିଏ ଆଲ୍‌କହଲର ରାସାୟନିକ ପ୍ରତିକ୍ରିୟାଦ୍ୱାରା ଏଷ୍ଟର (Ester) ସୃଷ୍ଟି ହୁଏ । ଇଥାନୋଇକ୍ ଏସିଡ୍ ବିଶୁଦ୍ଧ ଆଲକହଲ ସହିତ ପ୍ରତିକ୍ରିୟା କରି ଏଷ୍ଟର ଦେଇଥାଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-19

(ii) ଏଷ୍ଟରଗୁଡ଼ିକ ସୁଗନ୍ଧଯୁକ୍ତ ପଦାର୍ଥ ଚ

(iii) ଏହାକୁ ଅତରରେ ବ୍ୟବହାର କରାଯାଏ ।

(iv) ଏହାକୁ ଖାଦ୍ୟ ଓ ପାନୀୟ ସୁଗନ୍ଧକାରୀ ଦ୍ରବ୍ୟ ରୂପେ ମଧ୍ୟ ବ୍ୟବହାର କରାଯାଏ ।

ସାବୁନୀକରଣ :
ସୋଡ଼ିୟମ୍ ଲବଣରେ ପରିଣତ ହୁଏ । ଏହି ପ୍ରତିକ୍ରିୟାକୁ ସାବୁନୀକରଣ କୁହାଯାଏ କାରଣ ଏହାକୁ ସାବୁନ୍ ପ୍ରସ୍ତୁତି କରିବା ପାଇଁ ବ୍ୟବହାର କରାଯାଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-20

(ii) କ୍ଷାରକସହ ପ୍ରତିକ୍ରିୟା: ଇଥାନୋଇକ୍ ଏସିଡ୍ + ସୋଡ଼ିୟମ୍‌ ହାଇଡ୍ରକ୍‌ସାଇଡ୍ → ଲବଣ + ଜଳ
NaOH + CH3COOH → CH3COONa + H2O

(iii) କାର୍ବୋନେଟ୍ ଏବଂ ହାଇଡ୍ରୋଜେନ କାର୍ବୋନେଟ୍ ସହ ପ୍ରତିକ୍ରିୟା:
କାର୍ବୋନେଟ୍ ଏବଂ ହାଇଡ୍ରୋଜେନ କାର୍ବୋନେଟ୍ ସହ ଇଥାନୋଇକ୍ ଏସିଡ୍ ପ୍ରତିକ୍ରିୟା କରି ଲବଣ, ଡାଇଅକ୍‌ସାଇଡ୍ ଏବଂ’ ଜଳ ଦେଇଥାଏ ।
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-21

କାର୍ଯ୍ୟାବଳୀ -7 (Activity-7)
ଆବଶ୍ୟକ ଉପକରଣ: ଦୁଇଟି ପରୀକ୍ଷାନଳୀ, 10 ମି.ଲି. ଜଳ, ରୋଷେଇରେ ବ୍ୟବହୃତ ତେଲ ।

ପରୀକ୍ଷଣ:

  • ଦୁଇଟି ପରୀକ୍ଷାନଳୀରେ ପ୍ରାୟ 10 ମି.ଲି. ଜଳ ନିଅ, ପ୍ରତ୍ୟେକ ପରୀକ୍ଷାନଳୀରେ ଗୋଟିଏ ବୁନ୍ଦା ଲେଖାଏଁ ତେଲ ପକାଅ ଓ ପରୀକ୍ଷାନଳୀକୁ A ଓ B ରୂପେ ଚିହ୍ନଟ କର ।
  • ପରୀକ୍ଷାନଳୀ B ରେ ଅଳ୍ପ କେତେ ବୁନ୍ଦା ସାବୁନ ଦ୍ରବଣ ପକାଅ ।
  • ଦୁଇଟି ଯାକ ପରୀକ୍ଷାନଳୀକୁ ଖୁବ୍ ଜୋର୍‌ରେ ଏକା ସମୟରେ ହଲାଅ ।

ପର୍ଯ୍ୟବେକ୍ଷଣ:
ପରୀକ୍ଷାନଳୀ B ରେ ତେଲ ଓ ଜଳ ସାବୁନର ଗୋଟିଏ ସ୍ତର ଦେଖାଯାଉଛି । କାରଣ ତେଲ ସାବୁନ୍ ଦ୍ରବଣରେ ଦ୍ରବୀଭୂତ ହୁଏ ଫଳରେ ସଫା କରିବାରେ ସାହାଯ୍ୟ କରେ । ପରୀକ୍ଷାନଳୀ A ଜଳ ଓ ରୋଷେଇ ରେ ବ୍ୟବହୃତ ତେଲ ଅଛି । ଜୋର୍‌ରେ ହଲାଇଲା ପରେ କିଛି ସମୟ ସ୍ଥିର ହେବାକୁ ଦିଅ । 2ଟି ସ୍ତର ହୋଇ ରହିଥ‌ିବା ଦେଖାଯିବ କାରଣ ତେଲ ଓ ଜଳ ପରସ୍ପର ଅଦ୍ରବଣୀୟ ।

ସିଦ୍ଧାନ୍ତ:
ସାବୁନ ଦ୍ରବଣରେ ତେଲ ଦ୍ରବଣୀୟ, ଜଳ ମଧ୍ଯରେ ତେଲ ଅଦ୍ରବଣୀୟ ।

ସାଚୁନ୍‌ ଓ ଡିଟରଜେଣ୍ଠ (Soaps and Detergents):
ସାବୁନ୍ :

  • ସାବୁନର ଅଣୁଗୁଡ଼ିକ ଦୀର୍ଘ-ଶୃଙ୍ଖଳ କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍‌ର ସୋଡ଼ିୟମ କିମ୍ବା ପୋଟାସିୟମ ଲବଣ ।
  • BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-22
  • ପ୍ରାକୃତିକ ତୈଳ ଓ ଚର୍ବିରୁ ସାବୁନ ପ୍ରସ୍ତୁତ କରାଯାଏ ।
  • ଜୈବ ନିମ୍ବୀକରଣ ଯୋଗ୍ୟ ।
  • ଅମ୍ଳୀୟ ମାଧ୍ୟମରେ ବ୍ୟବହାର କରାଯାଇ ପାରିବନାହିଁ ।

ଡିଟରଜେଣ୍ଠ:

  • ଦୀର୍ଘଶୃଙ୍ଖଳ ବିଶିଷ୍ଟ କାର୍ବୋକ୍‌ଲିକ୍ ଏସିଡ୍‌ର ଏମୋନିୟମ୍ କିମ୍ବା ସଲ୍‌ଫୋନେଟ୍ ଲବଣ ।
  • BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-23
  • ପେଟ୍ରୋଲିୟମ୍ର ଉତ୍ପାଦଗୁଡ଼ିକରୁ ଡିଟରଜେଣ୍ଟ୍ ପ୍ରସ୍ତୁତ କରାଯାଏ ।
  • ଜୈବନିମ୍ନୀକରଣ ଅଯୋଗ୍ୟ ।
  • ଅମ୍ଳୀୟ ମାଧ୍ୟମରେ ବ୍ୟବହାର କରାଯାଇ ପାରିବ ।

BSE Odisha 10th Class Physical Science Solutions Chapter 4 ଅମ୍ଳ, କ୍ଷାରକ ଓ ଲବଣ

କାର୍ଯ୍ୟାବଳୀ -8 (Activity-8)
ଆବଶ୍ୟକ ଉପକରଣ:
ଦୁଇଟି ପରୀକ୍ଷାନଳୀ, 20 ମି.ଲି. ପାତିତ ଜଳ କିମ୍ବା ବର୍ଷାଜଳ, ଅନ୍ୟଟିରେ 10 ମି.ଲି.

ପରୀକ୍ଷଣ :
ଦୁଇଟି ଭିନ୍ନ ଭିନ୍ନ ପରୀକ୍ଷାନଳୀରେ ପାତିତ ଜଳ ଓ ଖରଜଳ ନିଅ । ପ୍ରତ୍ୟେକ ପରୀକ୍ଷାନଳୀରେ ଦୁଇବୁନ୍ଦା ସାବୁନ ଦ୍ରବଣ ପକାଅ । ପରୀକ୍ଷାନଳୀ ଦୁଇଟିକୁ ଖୁବ୍ ଜୋର୍‌ରେ ଏକା ସମୟ ପାଇଁ ହଲାଅ ।

ପର୍ଯ୍ୟବେକ୍ଷଣ:
ଯେଉଁ ପରୀକ୍ଷାନଳୀରେ ପାତିତ ଜଳ |ବର୍ଷାଜଳ ଅଛି ସେହି ପରୀକ୍ଷାନଳୀରେ ଅଧ୍ଵକ ଫେଣ ସୃଷ୍ଟି ହୋଇଛି । ଯେଉଁ ପରୀକ୍ଷାନଳୀରେ ଖରଜଳ ଅଛି ସେଥ‌ିରେ ଦହିଭଳି ଧଳା ଅବକ୍ଷେପ ଦେଖାଯାଉଛି ।

ସିଦ୍ଧାନ୍ତ:
ମୃଦୁଜଳରେ ସାବୁନ ଫେଣ ସୃଷ୍ଟିକରେ, ଖରଜଳରେ ସାବୁନ୍ ଦହିଭଳି ଧଳା ଅବକ୍ଷେପ ସୃଷ୍ଟିକରେ ।

କାର୍ଯ୍ୟାବଳୀ -9 (Activity-9)
ଆବଶ୍ୟକ ଉପକରଣ:
2ଟି ପରୀକ୍ଷାନଳୀ, 20 ମି.ଲି. ଖର ଜଳ, ସାବୁନଦ୍ରବଣ, ଡିଟରଜେଣ୍ଟ ଦ୍ରବଣ ।

ପରୀକ୍ଷଣ:
ପ୍ରତ୍ୟେକ ପରୀକ୍ଷାନଳୀରେ 10 ମିଲି ଲି. ଖରଜଳ ନିଅ । ଗୋଟିଏ ପରୀକ୍ଷାନଳୀରେ ପାଞ୍ଚବୁନ୍ଦା ସାବୁନ ଦ୍ରବଣ ଓ ଅନ୍ୟ ଏକ ପରୀକ୍ଷାନଳୀରେ ପାଞ୍ଚ ବୁନ୍ଦା ଡିଟରଜେଣ୍ଟ୍ ଦ୍ରବଣ ପକାଅ । ଉଭୟ ପରୀକ୍ଷାନଳୀକୁ ନିର୍ଦ୍ଦିଷ୍ଟ ସମୟ ପାଇଁ ହଲାଅ ।

ପର୍ଯ୍ୟବେକ୍ଷଣ :
ଦୁଇଟି ଯାକ ପରୀକ୍ଷାନଳୀରେ ସମାନ ପରିମାଣର ଫେଣ ରହୁନାହିଁ । ସାବୁନ ଦ୍ରବଣ ଥିବା
BSE Odisha Class 10 Physical Science Solutions Chapter 4 img-24
ପରୀକ୍ଷାନଳୀରେ ଅଧ୍ବକ ପରିମାଣରେ ଫେଣ ସୃଷ୍ଟି ହୋଇଛି ।

CHSE Odisha Class 11 English Telegram, E-mail Writing

Odisha State Board CHSE Odisha Class 11 Invitation to English 3 Solutions Telegram, E-mail Writing Textbook Activity Questions and Answers.

CHSE Odisha 11th Class English Telegram, E-mail Writing

Telegram

An ordinary letter may take two or three days to reach the addressee; if the message is urgent we send a telegram. Telegrams are the most common means of sending urgent messages if has an advantage over the telephone in that a written communication will be available for future reference. When you write a telegram, you have to limit your meaning to, the fewest possible words, since the amount you have to pay depends on the number of words you use in your telegram. In reducing the length of a message, you should not make it vague.

Remember the following points :
1. You can leave out articles, prepositions, and similar words that do not carry meaning in themselves but help to construct grammatical sentences.
2. Time or quantity or number could be clearly specified.
3. The address must be complete.
4. When in doubt, add a word rather than omit it.
5. Use capital letters.

CHSE Odisha Class 11 English Telegram, E-mail Writing

Activity 1

Here are some messages which need to be sent as telegrams. Go through them carefully, strike off the words you think unnecessary and rewrite each one in the form of a telegram.
The first one has been done for you.
1. (My) bag (has) (been) stolen. (I) (have) no money send Rs. 1000 immediately (in) (the) care (of) ELTI Hostel.

Hence, the telegram is to be written in the following manner:

Hence, the telegram is to be written in the following manner

Now convert the following messages into telegrams :
2. Money has been sent. You should contact the Warden on Wednesday. Write back. Father.
3. I am unable to arrive on Tuesday. There is a meeting on Wednesday. You may postpone it to Friday.
4. I am reaching you with my family on 20th February by the Konark Express.

Answer:
(2) MONEY SENT (.) CONTACT WARDEN WEDNESDAY (.) WRITE BACK. FATHER
(3) NOT ARRIVING TUESDAY (.) MEETING WEDNESDAY (.) POSTPONE TO FRIDAY
(4) REACHING WITH FAMILY TWENTIETH FEBRUARY KONARK

CHSE Odisha Class 11 English Telegram, E-mail Writing

Activity 2

Here are some letters which you have to convert into telegrams. Go through them carefully and identify the main ideas, which the telegrams should contain. The main ideas of the first letter have been identified and underlined.

1. “We haven’t heard from you for more than two months. We have written a number of letters to you. but you haven’t written us back. We are extremely worried. We hope and pray you are not ill. Please send a wire immediately about your welfare. If we do not hear from you this week, we will come to
Rourkela.”
2. “There is nothing to worry. I’m perfectly well. I couldn’t write because I had gone to IIT, Kharagpur on a study tour. Then I visited a friend in Calcutta for a few days. I am sorry for not writing.”
3. “Last evening Grandmother complained of severe pain in the stomach. We sent for a doctor. He gave her an injection and asked us to move her to hospital. He said her appendix had to be removed. The operation is on 10th. Mother wants you to come.”
4. “Our college is organising an educational tour to South India for 15 days. The tour will be very useful. We will be visiting many temples, museums and art galleries. All my friends are going. Please send Rs. 3,000 immediately. On my return I’ll write about the places we have visited.”

Answer:
(1) NOT HEARD FROM YOU EXTREMELY WORRIED SEND WIRE IMMEDIATELY ABOUT YOUR WELFARE
(2) DON’T WORRY PERFECTLY WELL HAD GONE STUDY TOUR AND COULD NOT WRITE SORRY
(3) GRANDMOTHER HOSPITALISED APPENDIX OPERATION TENTH COME
(4) COLLEGE ORGANISING SOUTH INDIA EDUCATIONAL TOUR ALL FRIENDS GOING SEND THREE THOUSAND IMMEDIATELY

CHSE Odisha Class 11 English Telegram, E-mail Writing

Activity 3

A number of situations have been described below. You are required to draft a telegram to suit each situation. A part of each telegram is given. Can you complete the telegram?
1. Three months ago, that is, on 15 October, you ordered a dictionary from the Modem Book Depot, Station Square, Bhubaneswar. You have not received the book. You want the shop to send the book without further delay.
2. You are appearing for the +2 Examination. Unfortunately, you have not received your Admit Card. You want the council authorities to allow you to take the examination pending receipt of the Admit Card.
3. You are returning home (from Bangalore) for the holidays. You had written to your father that you would arrive on Sunday morning, but as berths are not available, you have to change your travel plans. You will now arrive two days later, by a different train. Draft a telegram informing your father of the change.
4. Prof. Mishra is in Delhi on tour. He was supposed to return to Bhubaneswar for an important meeting but has been held up in Delhi because of bad weather. He wants to inform his office of what happened and to apologize for not attending the meeting. Draft a telegram for him.

Answer:
(1) DICTIONARY ORDERED FIFTEEN OCTOBER NOT RECEIVED SENT IMMEDIATELY
(2) PLUS TWO ARTS ADMIT CARDS NOT RECEIVED PERMIT APPEARING EXAMINATION PENDING RECEIPT
(3) BERTHS NOT AVAILABLE CHANGED PLANS ARRIVING TUESDAY HOWRAH MAIL
(4) STRANDED DUE TO BAD WEATHER AND UNABLE TO ATTEND MEETING APOLOGIES

Activity 4

Read the following situations and draft suitable telegrams for each.

1. Your brother has booked tickets by the Howrah Mail and will arrive from Madras on Saturday morning. On Thursday, there is an announcement on TV that a cyclone is likely to hit coastal Orissa in the next 48 hours. Draft a telegram to be sent to your brother asking him to cancel the journey.
2. You have received a 13-volume set of Brilliant Tutorials Elite 2009. But when you unpack the parcel you find that volume 10 is missing. Draft a telegram to the bookseller.

Answer:
(1) POSTPONE JOURNEY CANCEL TICKETS DANGEROUS CYCLONE HITTING ORISSA COAST SATURDAY
(2) RECEIVED BRILLIANT ELITE SET. VOLUME TEN IS MISSING SEND IT IMMEDIATELY

CHSE Odisha Class 11 English Telegram, E-mail Writing

E-MAIL

E-mail is a medium that has revolutionized the way in which we communicate with each other. It is relatively now very popular E-mail makes it possible to communicate cheaply and almost instantly with people anywhere in the world – provided they have access to a computer. You can send any type of message, from a single word to a book-length document complete with pictures and sound files. The recipient can respond at once or think carefully before replying. You can communicate just with one person or with a large group, every member of which can participate as much or as little as they wish. E-mails inhabit a shape somewhere between personal meetings, telephones, and letters. Like telephones, they are quick and inexpensive. They are a fairly new technology. The format of e-mail is quite simple, just like the telegram form, but there is no room for capital letters in the former. Write e-mail IDs after TV: and from :

Now write e-mails for the 4 situations given in Activity 3.
Answer:
(1)
To: mbd@yahoomail.com
CC :
From: bckhuntia; g mail.com
Date: 20.11.2009
Re: Request for dictionary
Sir,
Despite my order to you in connection with a dictionary on 15 October, you haven’t sent it yet. I would request to despatch the same as soon as possible.
BC Khuntia

(2)
To : secretary council @ g mail.com
SC :
From : kunal patnaik@yahoo.mail
Date: 14.2.20
Re: Request for Admit card
Sir,
Since I have not received my admit card for the +2 Final Examination, I would request you to allow me to take the examination pending the receipt of Admit Card.
Kunal Patnaik

(3)
To : sckhuntia®yahoo mail.com
From : vedadya khuntia@g mail.com
Date : 11.9.20
Papa,
Since berths are not available, I cannot reach home on Sunday morning. I will arrive two days later, by a different train.
Ved

CHSE Odisha Class 11 English Telegram, E-mail Writing

(4)
To: vice-chancellor, Ravenshaw college@yahoo mail.com
CC :
From: pmishra@g mail.com
Date: 4.11.20_
Re: Apology for not attending the meeting
Sir,
Since I have been stranded in Delhi, due to bad weather, I am unable to attend the meeting and beg apology for the same.
P Mishra

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

Odisha State Board Elements of Mathematics Class 12 Solutions CHSE Odisha Chapter 9 Integration Ex 9(k) Textbook Exercise questions and Answers.

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Exercise 9(k)

Evaluate the following Integrals:
Question 1.
(i) \(\int_0^{\frac{\pi}{2}} \frac{d x}{1+\tan x}\)dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.1(1)

(ii) \(\int_0^{\frac{\pi}{2}} \frac{\sqrt{\sin x}}{\sqrt{\sin x}+\sqrt{\cos x}}\)dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.1(2)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

(iii) \(\int_0^1 \frac{\ln (1+x)}{2+x^2}\)dx (x = tan θ)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.1(3)

(iv) \(\int_0^\pi \frac{x d x}{1+\sin x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.1(4)

Question 2.
(i) \(\int_{-a}^a\)x4 dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.2(1)

(ii) \(\int_{-a}^a\)(x5 + 2x2 + x) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.2(2)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

(iii) \(\int_{-\frac{\pi}{4}}^{\frac{\pi}{4}}\)cos2 x dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.2(3)

(iv) \(\int_{-\frac{\pi}{6}}^{\frac{\pi}{6}}\)sin5 x dx
Solution:
Let f(x) = sin5 x
Then f(-x) = sin5 (-x)
= -sin5 x = -f(x)
So f(x) is an odd function.
Thus \(\int_{-a}^a\)f(x) dx = 0
\(\int_{-\frac{\pi}{6}}^{\frac{\pi}{6}}\)sin5 x dx = 0

Question 3.
(i) \(\int_0^\pi\)cos3 x dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.3(1)

(ii) \(\int_0^\pi\)cos2 x dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.3(2)

(iii) \(\int_0^\pi\)sin3 x cos x dx
Solution:
\(\int_0^\pi\)sin3 x cos x dx
[Put sin x = t, then cos x dx = dt
When x = 0, t = 0, when x = π, t = 0
\(\int_0^\pi\)t3 dt = 0

(iv) \(\int_0^\pi\)sin x cos2 x dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.3(4)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

Question 4.
Show that
(i) \(\int_0^1 \frac{\ln x}{\sqrt{1-x^2}}\) dx = \(\frac{\pi}{2} \ln \frac{1}{2}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.4(1)

(ii) \(\int_0^{\frac{\pi}{2}} \frac{\cos x-\sin x}{1+\sin x \cos x}\) dx = 0
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.4(2)

(iii) \(\int_0^\pi\)x ln sin x dx = \(\frac{\pi^2}{2} \ln \frac{1}{2}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.4(3)

Question 5.
(i) \(\int_0^{\pi / 2}\)ln (tan x + cot x) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(1)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

(ii) \(\int_0^\pi \frac{x \tan x-\sin x}{1+\sin x \cos x}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(2)

(iii) \(\int_1^3 \frac{\sqrt{x} d x}{\sqrt{4-x}+\sqrt{x}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(3)

(iv) \(\int_0^\pi \frac{x \sin x d x}{1+\cos ^2 x}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(4)

(v) \(\int_0^1\)x (1 – x)100 dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(5)

CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k)

(vi) \(\int_{\pi / 6}^{\pi / 3} \frac{d x}{1+\sqrt{\cot x}}\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(6)

(vii) \(\int_0^{50}\)ex-[x] dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 9 Integration Ex 9(k) Q.5(7)

CHSE Odisha Class 11 English Business Letter Writing

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

CHSE Odisha 11th Class English Business Letter Writing

Business Letters

A business letter is written for a particular purpose. Its aim is to transact some particular business. For example The letter you write to a sports-goods firm asking for information about their products and the reply they send you are business letter.
A business letter normally has seven parts some of which are not found in personal letters.
1. Sender’s address at the top right-hand comer.

2. The Date:
As in the personal letter, the date is written or typed on the right below the sender’s address.

3. The Inside Address:
The address is placed on the left, two or three lines below the line of the date (which is on the right). Each line of the address begins on the left margin. Here are some examples :
Shenai and Shenai
Auditors
Court Chambers
Chennai – 400020
The Divisional Superintendent
Central Railway
Vijayawada – 520001

4. The Salutation:
Dear Sir, Dear Sirs, and Madam – are the most common forms.

5. The body of the letter:
This part contains the actual message to be conveyed – make your letter brief, clear and courteous. The letter need not be stiff or cold. Avoid the old formulas which were fashionable. Here are some old phrases that are no longer used : Yours of ever date to hand at your earliest convenience.

6. The subscription of the complimentary close:
The most common forms in business letters are ‘Yours truly’, and ‘Yours faithfully’. In very formal letters such as letters to high dignitaries, you will find ‘Yours respectfully’, ‘Yours obediently’ or ‘Your obedient servant’. If you have used a personal name in the salutation, the subcription should be ‘Yours sincerely’.

7. The Signature:
The formal letter requires your full signature. Characteristics of a good business letter
1. A business letter must be courteous and considerable
2. It should be precise and clear.
3. It must be complete.
4. A business letter must be brief.

CHSE Odisha Class 11 English Business Letter Writing

Activity 9

Here is a letter about the introduction of a new mosquito-repellant. Read it carefully, paying attention to the various points.

Quality Marketing Agency
27 Janpath, Bhubaneswar

4 March, 20

To
Mr. M.K. Pradhan
Managing Director
Home Products India Ltd.
Industrial Estate, Mancheswar, Bhubaneswar.
Dear Mr. Pradhan,
As requested by you, vide your letter No. MD/NS/2233 dated 2.2.20 we have carried out a market survey to check the public’s acceptance of the new mosquito repellant which your company plans to manufacture. We conducted an opinion poll covering 1000 families in the coastal districts of Orissa. Forty percent of these families use mosquito repellants, but most of them are unhappy with the existing products in the market. They find the electronic repellants too expensive while the coil-based ones emit too much smoke.

The preference is for an expensive product, preferably one that produces no smoke. Our study suggests there may be a good market for a new repellant, provided these requirements are kept in mind. We recommend that your company should concentrate on manufacturing an improved kind of smoke-free mosquito coil, preferably one that produces a pleasant fragrance.
Yours sincerely,
S.K. Patnaik Director of
Research Quality
Marketing Agency

Answer the following questions.
1. Who made the request for the study?
2. By whom was the study made?
3. What was the purpose of the study?
4. What kind of procedure was used for the study?
5. What were the findings from the study?
6. What was the conclusion arrived at?
7. What was the recommendation made?
Did you observe that Mr. S. K. Patnaik did not use the official letter format as he was using a printed letterhead?

Answer:
1. Mr. A. K. Pradhan, the Managing Director, of Home Products India Ltd, had made the request for the study.
2. The study was made by the Quality Marketing Agency.
3. The purpose of the study was to test the public’s acceptance of a new mosquito repellant.
4. The Quality Marketing Agency conducted an opinion poll covering a thousand families in the coastal district of Orissa to know their opinion on mosquito repellants available in the market.
5. The study revealed that people were not satisfied either with electronic repellants or coil-based ones. They showed a preference for a less expensive product and that which produces no smoke.
6. It was concluded that there is a market for a new repellant that is less expensive. Besides, it produces no smoke.
7. It was recommended that Home Products Ltd. should manufacture a smoke-free mosquito coil and one that produces a pleasant smell.

CHSE Odisha Class 11 English Business Letter Writing

Activity 10

Imagine that you are the President of the Literary Society of your College. Your Society plans to publish a journal. You have asked the Secretary of the Society to contact all the printing firms in the town and to select one of them to print your journal.
Here is the letter that the Secretary submitted to you. Some parts of the letter are missing. Supply the missing parts.

LITERARY SOCIETY
………………… COLLEGE

5 February,

To
Prof. B. Pujari
President
Literary Society
Sir,
______________________________________
______________________________________
______________________________________
A team consisting of the Secretary and the Assistant Secretary of the Society contacted all five printing firms in the town and obtained quotations from them for the printing of the proposed journal. All the firms quoted the same price, that is, Rs. 5000/- for 1000 copies. Rasmita Printers, however, offered a discount of ten percent, provided we allowed them an extra period of fifteen days for printing.
___________________________________________________________________________________________________
___________________________________________________________________________________________________
______________________________________________________
Yours faithfully,
S. Pujari
Secretary

Answer:

Literary Society
B.J.B. College, Bhubaneswar

5 February, 20

To
Prof. B. Pujari
President
Literary Society
Sir,
As desired by you a team consisting of the Secretary and Assistant Secretary of the society contacted all five printing firms in town and obtained quotations from them for the printing of the proposed journal. A team consisting of the Secretary and the Assistant Secretary of the Society contacted all five printing firms in the town and obtained quotations from them for the printing of the proposed journal.

All the firms quoted the same price, that is, Rs. 5000/- for 1000 copies. Rasmita Printers, however, offered a discount of ten percent, provided we allowed them an extra period of fifteen days for printing. Since we do not need the copies of the journal till a month later, we could consider the offer of Rasmita Printers as it will cost us Rs. 500/- less than the offers quoted by other printing firms.
Yours faithfully,
Puja Udgata
Secretary

CHSE Odisha Class 11 English Business Letter Writing

Activity 11

A customer approached a bank for a house-building loan. Before sanctioning the loan, the Branch Manager asked the Field Officer to examine the application and suggest whether the loan should be sanctioned. The following is the letter that the Field Officer wrote. Some parts of the letter are missing. Re-write the missing parts, using the hints supplied.

SBI PD BRANCH
CRP Square
Bhubaneswar

3rd March,

To
Mr. M. Mishra
Branch Manager
SBI PD Branch
CRP Square
Bhubaneswar.
Sir,
1. As described by you in your letter No. 254 dt. 24 February, I examined the application of Mr. J. K. Panda for a house-building loan. (inspection of the site – examination of documents – Mr. Panda interviewed)
2. My examination of the application and the relevant documents reveals : (ownership and size of the plot – whether the plot is a disputed one – Mr. Panda’s monthly income, and whether any other loan has been taken by Mr. Panda – Conclusion).
3. As Mr. Panda is a deserving party, the sanction of the loan is recommended.
Yours faithfully,
K.C. Panigrahy
Field Officer

CHSE Odisha Class 11 English Business Letter Writing

Answer:

SBI PD BRANCH
CRP Square
Bhubaneswar

3 March, 20.

Prof. M. Mishra
Branch Manager SBI
PD Branch
CRP Square
Bhubaneswar
Sir,
1. As desired by you in your letter No. 254 dt. 24 February 20, I examined the application of Mr. J.K. Panda for a house-building loan. I also personally inspected the site, interviewed Mr. Panda, and examined the documents relating to the plot.
2. My examination of the application and the relevant documents reveal that the site is an undisputed one. To date, all land cess has been paid and the plot is litigation free. Mr. J.K. Panda is the owner of the plot and he has clear papers certifying its ownership. The plot is 112 decimals in size and its market value is around Rs. 8.00 lakhs. Mr. Panda also has a regular income of Rs. 15,000 and has no outstanding loan in his account.
3. As Mr. Panda is a deserving party, the sanction of the loan is recommended.
Yours faithfully,
K.C. Panigrahy
Field Officer

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

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

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

Find the solutions of the following differential equations:
Question 1.
(x + y) dy + (x – y) dx = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.1

Question 2.
\(\frac{d y}{d x}\) = \(\frac{1}{2}\left(\frac{y}{x}+\frac{y^2}{x^2}\right)\)
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.2

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

Question 3.
(x2 – y2) dx + 2xy dy = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.3

Question 4.
x\(\frac{d y}{d x}\) + \(\sqrt{x^2+y^2}\) = y
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.4

Question 5.
x (x + y) dy = (x2 + y2) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.5
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.5.1
This is the required solution.

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

Question 6.
y2 + x2 \(\frac{d y}{d x}\) = xy \(\frac{d y}{d x}\)
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.6
This is the required solution.

Question 7.
x sin\(\frac{y}{x}\) dy = \(\left(y \sin \frac{y}{x}-x\right)\)dx
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.7

Question 8.
x dy – y dx= \(\sqrt{x^2+y^2}\) dx
Solution:
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.8
This is the required solution.

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

Question 9.
\(\frac{d y}{d x}\) = \(\frac{y-x+1}{y+x+5}\)
Solution:
Given equation is
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.9
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.9.1
This is the required solution.

Question 10.
(x – y) dy = (x + y + 1) dx
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.10
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.10.1
This is the required solution.

Question 11.
(x – y – 2) dx + (x – 2y – 3) dy = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.11
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.11.1
This is the required solution.

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

Question 12.
\(\frac{d y}{d x}\) = \(\frac{3 x-7 y+7}{3 y-7 x-3}\)
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.12
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.12.1
This is the required solution.

Question 13.
(2x + y + 1) dx + (4x + 2y – 1) dy = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.13
⇒ 2z + ln (z – 1) = 3x + C
⇒ 2 (2x + y) + ln (2x + y – 1 ) = 3x + C
⇒ (x + 2y) + ln (2x + y – 1 ) = C
This is the required solution.

Question 14.
(2x + 3y – 5)\(\frac{d y}{d x}\) + 3x + 2y – 5 = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.14
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.14.1

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

Question 15.
(4x + 6y + 5) dx – (2x + 3y + 4) dy = 0
Solution:
Given equation can be written as
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.15
CHSE Odisha Class 12 Math Solutions Chapter 11 Differential Equations Ex 11(c) Q.15.1
This is the required solution.

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

Odisha State Board  BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन Textbook Exercise Questions and Answers.

BSE Odisha Class 9 Hindi Solutions Poem 4 फिर महान बन

प्रश्न और अभ्यास (ପ୍ରଶ୍ନ ଔର୍ ଅଭ୍ୟାସ)

1. निम्नलिखित प्रश्नों का उत्तर एक या दो बाक्यों में दीजिए :
(ନିମ୍ନଲିଖତ ପ୍ରଶ୍ନ କା ଉତ୍ତର୍ ଏକ୍ ୟା ଦୋ ବାର୍କୋ ର୍ମେ ଦିଜିଏ )।
(ନିମ୍ନଲିଖୂ ପ୍ରଶ୍ନଗୁଡ଼ିକର ଉତ୍ତର ଗୋଟିଏ ବା ଦୁଇଟି ବାକ୍ୟରେ ଦିଅ )

(क) कवि ने मनुष्य से क्या बनने को कहा?
ମନୁଷ୍ୟ କୋ କିସ୍ ପ୍ରକାର କା ମନ ମିଲା ହୈ ? ଉସେ ୱହ କ୍ୟା କର ସକତା ହୈ ? (ମନୁଷ୍ୟକୁ କେଉଁ ପ୍ରକାରର ମନ ମିଳଛି ? ସେଥ‌ିରେ ସେ କ’ଣ କରିପାରିବ ?)
उत्तर:
कवि ने मनुष्य से महान / श्रेष्ठ बनने को कहा।

(ख) मनुष्य को किस प्रकार मन मिला है?
(ମହାନ୍ ମନୁଷ୍ କି ସ୍ସେ କହତେ ହେଁ? କେଉଁ ପ୍ରକାର ମନ ମିଳିଛି ?)
उत्तर:
मनुष्य को अपार प्रेम से भरा मन मिला है।

(ग) मनुष्य को महान बनने के लिए क्या करना चाहिए और क्या नहीं करना चाहिए?
(ମନୁଷ୍ୟ କୋ ମହାନ୍ ବନେ କେ ଲିଏ କ୍ୟା କନା କନା ଚାହିଏ ଔର୍ କ୍ୟା ନେହୀ କର୍‌ନା ଚାହିଏ ? ମନୁଷ୍ୟ କୋ ମହାନ୍ ବନେ କେ ଲିଏ କ୍ୟା)
(ମାନବକୁ ଶ୍ରେଷ୍ଠ ହେବା ପାଇଁ କ’ଣ କରିବା ଉଚିତ୍ ଓ କ’ଣ ନକରିବା ଉଚିତ ?)
उत्तर:
विश्व आज तृषित है।

(घ) कवि मनुष्य से क्या न बनने को कहा है?
(ମନୁଷ୍ୟ କୋ ମହାନ୍ ବନ୍‌ନେ କେ ଲିଏ କବି ନେ କ୍ୟା ପ୍ରେରଣା ଦୀ ହୈ ?)
(ମନୁଷ୍ୟକୁ ଶ୍ରେଷ୍ଠ ହେବାପାଇଁ କବି କ’ଣ ପ୍ରେରଣା ଦେଇଛନ୍ତି ?)
उत्तर:
कवि मनुष्य से कृपण / कंजूस / लोभी न बनने को कहा है?

(ङ) जो शत्रु को क्षमा प्रदान नहीं करता, उसकी जीत किसके समान है?
କିସୀ କୀ ଜୀତ ହାର କେ ସମାନ ଜ୍ୟୋ ହୋନୀ ଚାହିଏ ? (କାହାର ବିଜୟ ପରାଜୟ ସହ ସମାନ ହେବା ଉଚିତ୍)
उत्तर:
उत्तर:
जो मनुष्य शत्रु को क्षमा प्रदान नहीं करते उसकी जीत पराजय के समान है। वे अपने हृदय में विजय का स्वाद जानता है मगर पराजय की पीड़ा जानता नहीं है।

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

2. निम्नलिखित प्रश्नों का उत्तर एक या दो बाक्यों में दीजिए:
(ନିମ୍ନଲିଖତ ପ୍ରଶ୍ନୋ କା ଉତ୍ତର୍ ଏକ୍ ୟା ଦୋ ବାର୍କୋ ର୍ମେ ଦିଜିଏ)।
(ନିମ୍ନଲିଖ ପ୍ରଶ୍ନଗୁଡ଼ିକର ଉତ୍ତର ଗୋଟିଏ ବା ଦୁଇଟି ବାକ୍ୟରେ ଦିଅ )

(क) कवि ने मनुष्य से क्या बनने को कहा?
(ନିମ୍ନଲିଖତ ପ୍ରଶ୍ନୋ କା ଉତ୍ତର୍ ଏକ୍ ୟା ଦୋ ବାର୍କୋ ର୍ମେ ଦିଜିଏ) ।
(ନିମ୍ନଲିଖ ପ୍ରଶ୍ନଗୁଡ଼ିକର ଉତ୍ତର ଗୋଟିଏ ବା ଦୁଇଟି ବାକ୍ୟରେ ଦିଅ )
उत्तर:
विजय का सुमन शूल बनता है।

(ख) मनुष्य को किस प्रकार मन मिला है?
(ମନୁଷ୍ୟ କୋ କିସ୍ ପ୍ରକାର ମନ୍ ମିଲା ହୈ ?)
(ମନୁଷ୍ୟକୁ କେଉଁ ପ୍ରକାର ମନ ମିଳିଛି ?)
उत्तर:
पाप से घृणा महान है।

(ज) किस पर सदैव गर्व न करना चाहिए?
(କିସ୍‌ର୍ ସଦୈବ୍ ଗର୍ବ ନ କର୍‌ନା ଚାହିଏ ?)
(କାହାଉପରେ ସର୍ବଦା ଅହଙ୍କାର ନ କରିବା ଉଚିତ୍ ?)
उत्तर:
दर्पशक्ति पर सदैव गर्व न करना चाहिए।

(झ) ‘फिर महान बन’ कविता के कवि का नाम क्या है?
(‘ଫିର୍ ମହାନ ବନ୍’ କବିତା କେ କବି କା ନାମ୍ କ୍ୟା ହୈ ?)
(ଫିର୍ ମହାନ୍ ବନ୍’ କବିତାର କବିଙ୍କର ନାମ କ’ଣ ?)
उत्तर:
‘फिर महान बन’ कविता के कवि नरेन्द्र शर्मा है।

(अ) ‘फिर महान बन’ कविता का मूल भाब क्या है?
(‘ଫିର୍ ମହାନ୍ ବନ୍’ କବିତା କା ମୂଲ୍ ଭାୱ କ୍ୟା ହୈ ?)
(‘ଫିର୍ ମହାନ ବନ୍’ କବିତାର ମୂଳ ଭାବ କ’ଣ ?)
उत्तर:
‘फिर महान बन’ कविता का मूल भाव यह है कि अपने कर्त्तब्य पर सचेतन होना चाहिए।

3. पाठ के आधार पर निम्नलिखित रिक्त स्थानो को भरिये
फिर महान ……………. ।
शत्रु को न ………………… सके ………………. प्रदान जो,
जीत क्यों उसे न ………………. के समान हो?
दुष्ट ………….. मानते न दुष्ट ……………… से,
……………… घृणा महान ………………….. न …………….. से।
………….. पर संदैव गर्व करना न, ………………।
उत्तर:
फिर महान बन
शत्रु को न कर सके क्षमा प्रदान जो,
जीत क्यों उसे न हार के समान हो?
दुष्ट हार मानते न दुष्ट नेम से,
पाप से घृणा महान है न प्रेम से।
दर्प-शक्ति पर सदैव गर्व करना न, मन।

1. उदाहरण के अनसार निम्नलिखित शब्दो के समानार्थक शब्द लिखिए:
(ଉଦାହରଣ ଅନୁସାରେ ନିମ୍ନଲିଖ୍ ଶବ୍ଦଗୁଡ଼ିକର ପ୍ରତିଶବ୍ଦ ବା ସମାନାର୍ଥକ ଶବ୍ଦ ଲେଖ : )
महान, सुमन, मनुष्य, अपार, प्रेम, प्यास, जीव, वक्ष, नेम, विश्व
उदाहरण:
महान – विशिष्ट, सुमन – पुष्प
उत्तर:
मनुष्य – इनसान, मानव

अपार – असीम

प्रेम – प्यार

प्यास – तृषा

जीव – प्राणी

वक्ष – छाती

नेम – नियम

विश्व – संसार

कृपण – कंजूस

क्षमा – माफी

शत्रु – दुश्मन

हार – पराजय

भूल – तुटि, गलत

दर्प – गर्व

दुष्ट – नटखट

गर्व – घमंड, अहंकार

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

2. उदाहरण के अनुसार निम्नलिखित शब्दों के विलोम/विपरीत शब्द लिखिए:
(ଉଦାହରଣ ଅନୁସାରେ ନିମ୍ନଲିଖ୍ ଶବ୍ଦଗୁଡ଼ିକର ବିପରୀତ ଶବ୍ଦ ଲେଖ : )
उदाहरण: प्रेम – घृणा, शत्रु – मित्र
उत्तर:
महान – तुच्छा
कृपण – दानी

मनुष्य – राक्षस

दुष्ट – शांत

क्षमा – दंड़

प्रदान – आदान

जीत – हार

समान – असमान

विजय – पराजय

पाप – पुण्य

3. निम्नलिखित शब्दों के वचन बदलिए:
(ନିମ୍ନଲିଖ୍ ଶବ୍ଦଗୁଡ଼ିକର ବଚନ ବଦଳାଅ : )
उदाहरण: मनुष्य – मनुष्य,
तुझे, जीव, शत्रु, कवि
उत्तर:
तुझे – तुम्हें
शत्रु – शत्रु
जीव – जीव
कवि – कवि

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

4. आप भी एक कविता लिखने की कोशिश करें:
उत्तर:
छात्र-छात्रा खुद लिखिए।

अति संक्षिप्त उत्तरमूलक प्रश्नोत्तर

A. निम्नलिखित प्रश्नों के उत्तर एक वाक्य में दीजिए।

प्रश्न 1.
‘फिर महान बन’ कविता के कवि का नाम क्या है?
उत्तर:
‘फिर महान बन’ कविता के कवि का नाम नरेंद्र शर्मा है।

प्रश्न 2.
कवि नरेंद्र शर्मा की कविता में क्या देखने को मिलते हैं?
उत्तर:
कवि नरेंद्र शर्मा की कविता में मानव प्रेम, प्रकृति-सौंदर्य के सरल और सजीव चित्र देखने को मिलते हैं।

प्रश्न 3.
मनुष्य किसकी संतान है?
उत्तर:
मनुष्य अमृत की संतान है।

प्रश्न 4.
मनुष्य श्रेष्ठ प्राणी के रूप में क्यों परिचित है?
उत्तर:
मनुष्य अपनी महानता के कारण श्रेष्ठ प्राणी के रूप में परिचित है।

प्रश्न 5.
मनुष्य आज अपना क्या भूल गया है?
उत्तर:
मनुष्य आज अपना कर्त्तव्य भूल गया है।

प्रश्न 6.
कवि ने इस कविता में क्या सलाह दी हे?
उत्तर:
कवि ने इस कविता में मनुष्य को अपने कर्त्तव्य पर सचेतन होने के लिए सलाह दी है।

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

प्रश्न 7.
कवि की चेतावनी क्या है?
उत्तर:
मनुष्य की मनुष्यता का पाठ पढ़ाने के लिए, संसार को स्वर्ग बनाने के लिए यह कवि की चेतावनी है।

प्रश्न 8.
कवि ने ‘मनुष्य ‘को क्या प्रेरणा दी है?
उत्तर:
कवि ने मनुष्य को फिर महान बनने की प्रेरणा दी है।

प्रश्न 9.
मनुष्य को किस प्रकार का मन मिला है?
उत्तर:
मनुष्य को अपार प्रेम से भरा मन मिला है।

प्रश्न 10.
विश्व आज क्या है?
उत्तर:
विश्व आज तृषित है।

प्रश्न 11.
किससे घृणा महान है?
उत्तर:
पाप से घृणा महान है।

प्रश्न 12.
किस पर सदैव गर्व नहीं करना चाहिए?
उत्तर:
दर्प शक्ति पर सदैव गर्व नहीं करना चाहिए।

B. निम्नलिखित प्रश्नों के उत्तर एक शब्द में दीजिए।

प्रश्न 1.
विजय का सुमन क्या बनता है?
उत्तर:

प्रश्न 2.
मनुष्य श्रेष्ठ प्राणी के रूप में क्यों परिचित है?
उत्तर:

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

प्रश्न 3.
कवि ने मनुष्य को क्या बनने को कहा है?
उत्तर:

प्रश्न 4.
कवि मनुष्य से क्या न बनने को कहा है?
उत्तर:

प्रश्न 5.
घृणा किससे महान है?
उत्तर:

प्रश्न 6.
सदैव किस पर गर्व न करना चाहिए?
उत्तर:

प्रश्न 7.
आज कौन तृषित है?
उत्तर:

प्रश्न 8.
आज मनुष्य क्या भूल गया है?
उत्तर:

प्रश्न 9.
किसकी जीत हार के समान मानी जाती है?
उत्तर:

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

प्रश्न 10.
मानब को किस प्रकार का मन मिला है?
उत्तर:

प्रश्न 11.
‘फिर महान बन’ कविता का मूल भाव क्या है?
उत्तर:

C. रिक्तस्थानों को भरिए।

प्रश्न 1.
……………… अपना कर्त्तव्य भूल गया है।
उत्तर:
मनुष्य

प्रश्न 2.
संसार को ……………. बनाने के लिए शर्मा जी की चेतावनी है।
उत्तर:
स्वर्ग

प्रश्न 3.
विश्व है तृषित, मनुष्य, अब न बन …………….. ।
उत्तर:
कृपण

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

प्रश्न 4.
‘फिर महान बन’ कविता …………………. कवि ने लिखी है।
उत्तर:
नरेंद्र शर्मा

प्रश्न 5.
मनुष्य को ……………… प्रकार का मन मिला है।
उत्तर:
अपार प्रेम से भरा

प्रश्न 6.
विश्व आज …………… है।
उत्तर:
प्यासा

प्रश्न 7.
जो शत्रु को क्षमा प्रदान नहीं करता, उसकी जीत के समान है।
उत्तर:
पराजय

प्रश्न 8.
जीत का सुमन बनता है।
उत्तर:
काँटा

प्रश्न 9.
“दर्प शक्ति पर सदैव गर्व कर न, मन” – यह पंक्ति कवि की है।
उत्तर:
नरेंद्र शर्मा

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

प्रश्न 10.
पाप से घृणा
उत्तर:
महान

प्रश्न 11.
दर्प-शक्ति पर सदैव करना न मन।
उत्तर:
गर्व

प्रश्न 12.
अपार प्रेम से भरा मन से मिला।
उत्तर:
मनुष्य

प्रश्न 13.
कवि ने मनुष्य को बनने को कहा।
उत्तर:
श्रेष्ठ

प्रश्न 14.
मनुष्य की संतान है।
उत्तर:
अमृत की

D. सही उत्तर चुनिए।

1. ‘फिर महान बन’ कविता के कवि कौन है?
(A) कबिर दास
(B) सूरदास
(C) नरेन्द्र शर्मा
(D) गिरिधर कविराज
उत्तर:
(C) नरेन्द्र शर्मा

2. ‘फिर महान बन’ के कवि का जन्म कब हुआ ?
(A) सन् 1910
(B) सन् 1912
(C) सन् 1911
(D) सन् 1913
उत्तर:
(D) सन् 1913

3. कवि का जन्म कौन से राज्य में हुआ था?
(A) बिहार
(B) उत्तर प्रदेश
(C) मध्यप्रदेश
(D) झारखंड़
उत्तर:
(B) उत्तर प्रदेश

4. कवि ने किसको फिर महान बनने की प्रेरणा दी है?
(A) पशु को
(B) मनुष्य को
(C) पक्षी को
(D) अपने आपको
उत्तर:
(B) मनुष्य को

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

5. किसके कारण मनुष्य श्रेष्ठ प्राणी कहलाता है?
(A) दया
(B) महानता
(C) घृणा
(D) बुद्धि
उत्तर:
(B) महानता

6. किस पर सदैव गर्व न करना चाहिए?
(A) घमंड़
(B) दर्पशक्ति
(C) घृणा
(D) इनमें से कोई भी नहीं
उत्तर:
(B) दर्पशक्ति

7. संसार को क्या बनाने की कवि की चेष्टा है?
(A) नर्क
(B) धरित्री
(C) स्वर्ग
(D) पवित्र
उत्तर:
(C) स्वर्ग

8. मनुष्य को किस पर सचेतन होना चाहिए?
(A) श्रम
(B) कर्त्तव्य
(C) काम
(D) आलस्य
उत्तर:
(B) कर्त्तव्य

9. मनुष्य किसकी संतान है?
(A) अमृत की
(B) धरणी की
(C) माता की
(D) अंबर की
उत्तर:
(A) अमृत की

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

10. किस से घृणा महान है?
(A) हत्या
(B) घृणा
(C) पाप
(D) इनमें से कोई नहीं
उत्तर:
(C) पाप

दोहे (ତେ।ହେ)

फिर महान बन, मनुष्य!
फिर महान बन।
मन मिला अपार प्रेम से भरा तुझे,
इसलिए कि प्यास जीब- मात्र कि बुझे,
बिश्व है तृषित, मनुष्य,
अब न बन कृपण।
फिर महान बन !
ଫିର୍ ମହାନ୍ ବନ୍, ମନୁଷ୍ୟ !
ଫିର୍ ମହାନ୍ ବନ୍ ।
ମନ୍ ମିଲା ଅପାର୍ ପ୍ରେମ୍ ସେ ଭରା ତୁଝେ,
ଇସ୍‌ଏ କି ପ୍ୟାସ୍ ଜୀବ୍-ମାତ୍ର କି ବୁଝେ,
ବିଶ୍ଵ ହୈ ତୃଷିତ୍, ମନୁଷ୍ୟ, ଅଚ୍ ନ ବନ୍ କୃପଣ୍।
ଫିର୍ ମହାନ୍ ବନ୍।
ଅନୁବାଦ:
ପୁନଶ୍ଚ ଶ୍ରେଷ୍ଠ ହୁଅ ମାନବ । ତୋତେ ଅସୀମ ପ୍ରେମର ମନ ମିଳିଛି ତେଣୁ ଶୋଷିଲା ପ୍ରାଣୀର ତୃଷା ମେଣ୍ଟାଅ । ବର୍ତ୍ତମାନ କୃପଣ ନ ହୋଇ ସଂସାରରେ ଥିବା ତୃଷିତ ମନୁଷ୍ୟର ତୃଷାକୁ ମେଣ୍ଟାଅ ଏବଂ ଶ୍ରେଷ୍ଠ ମନୁଷ୍ୟ ରୂପେ ସମାଜରେ ପରିଚିତ ହୁଅ।

शत्रु को न कर सके क्षमा प्रदान जो,
जित क्यों उसे न हार के समान हो?
शूल क्यों न बक्ष पर बने विजय-सुमन!
फिर महान बन।
ଶତ୍ରୁ କୋ ନ କର ସକେ କ୍ଷମା
ଜିତ୍ ଜ୍ୟୋ ଉସେ ନ ହାର୍ କେ ସମାନ୍ ହୋ
ଶୁଲ୍ କେଁ ନ ବକ୍ଷ ପର୍ ବନେ ବିଜୟ-ସୁମନ୍!
ଫିର ମହାନ୍ ବନ୍।
ଅନୁବାଦ;
ଯେଉଁ ବ୍ୟକ୍ତି ଶତ୍ରୁକୁ କ୍ଷମା ପ୍ରଦାନ କରିପାରେନା, ତାହାର ଜୟ ପରାଜୟ ସହ ସମାନ। ଯେପରିକି ଶୂଳ-ବିଦ୍ଧ ହୃଦୟ ବିଜୟକୁ ଫୁଲ ପରି ଗ୍ରହଣ କରିଥାଏ, ତୁ ସେହିପରି ମହାନ୍ ହେବାକୁ ଚେଷ୍ଟାକର।

BSE Odisha 9th Class Hindi Solutions Poem 4 फिर महान बन

दुष्ट हार मानते न दुष्ट नेम से,
पाप से घृणा महान है, न प्रेम से
दर्प-शक्ति पर सदैब गर्व कर न, मन।
फिर महान बन।
ଦୁଷ୍ଟ ହାର୍ ମା ନ ଦୁଷ୍ଟ ନେମ୍ ସେ,
ପାପ୍ ସେ ଘୃଣା ମହାନ୍ ହୈ, ନ ପ୍ରେମ୍ ସେ
ଦୁର୍ପ-ଶକ୍ତି ପର୍ ସଦୈବ ଗର୍ବ କର୍ ନ, ମନ୍ ।
ଫିର୍ ମହାନ୍ ବନ୍।
ଅନୁବାଦ:
ଦୁଷ୍ଟ ନିୟମରେ ହାର ମାନିବ, ପାପଠାରୁ ଘୃଣା ମହାନ୍ ଅଟେ ନା ପ୍ରେମରୁ । ନିଜର ଶକ୍ତି ବା କ୍ଷମତା ଉପରେ ସର୍ବଦା ଗର୍ବ କର ନାହିଁ । ପୁନଶ୍ଚ ଶ୍ରେଷ୍ଠ ମନୁଷ୍ୟରେ ପରିଚିତ ହୁଅ ।

शबनार: (ଶରାର୍ଥି)

महान – श्रेष्ठ (ଶ୍ରଷ୍ଠ) ।

अपार – असीम ( ଅସୀମ ବା ସୀମାହୀନ) ।

प्यास – तृषा (ତୃଷା, ଶୋଷ) ।

तृषित – प्यासा (ଶୋଷିଲା) ।

कृपण – कंजूस (କୃପଣ ) ।

विजय सुमन – जीत के फूल (ବିଜୟର ଫୁଲ) ।

शूल – काँटा, पीड़ा (କଣ୍ଟା, ଯନ୍ତ୍ରଣା ବା କଷ୍ଟ) ।

सुमन – पुष्प, फूल, प्रसून, कुसुम (ଫୁଲ, ପୁଷ୍ପ, କୁସୁମ) ।

घृणा – नफरत ( ଘୃଣା) ।

सदैव – सदा, सर्वदा ( ସବୁବେଳେ ) ।

गर्व – घमंड, अभिमान (ଅହଙ୍କାର, ଅଭିମାନ) ।

वक्ष – हृदय (ହୃଦୟ, ଛାତି) ।

नेम – नियम, फायदा, दस्तूर, रीति (ନିୟମ) ।

दर्पशक्ति – घमण्ड (ଗର୍ବ, ଅହଙ୍କାର) ।

कवि परिचय (କବି ପରିଚୟ)।

नरेन्द्र शर्मा का जन्म सन् 1913 ईस्वी को उत्तर प्रदेश के बुलंदर शहर जनपद के जहाँगीरपुर नामक गाँव में हुआ। सन् 1936 ईस्वी में इलाहाबाद विश्वविद्यालय से एम. ए. पास किया। साहित्य-सृजन के प्रति उनकी पहले सी ही रुचि रही। छात्र – जीवन में ही ‘भूलझूल’ तथा ‘कर्णफूल’ प्रकाशित हुए। फिर उन्होंने स्वतंत्रता- संग्राम में भाग लिया। जेल गए। कुछ दिनों तक अध्यापक हुए। फिर सिनेमा के लिए गीत लिखे। बाद में मुम्बाई आकाशवाणी केन्द्र में नियुक्त हुए। 1988 में आपका देहान्त हो गया। प्रमुख कविता संकलन हैं : प्रभात फेरी, प्रवासी के गीत, प्रीति कथा, कामिनी, अग्नि शस्य, कदली वन, प्यासा निर्झर, उत्तरजय, बहुत रात गए आदि।

नरेन्द्र शर्मा की कविता में मानव – प्रेम, प्रकृति – सौन्दर्य के सरल और सजीव चित्र मिलते हैं। जड़ वस्तुओं में मानवीय चेतना, करुणा की भावधारा बहती है। बाद में वे समाज के दुःख-दर्द के प्रति आकृष्ट हुए और असुविधाओं को दूर करने की आवाज उठाई ।विद्रोह किया। शर्माजी की भाषा सरल, शुद्ध और भावगर्भक होती है।

CHSE Odisha Class 12 Political Science Book Solutions (+2 2nd Year)

CHSE Odisha 12th Class Political Science Book Solutions (+ 2 2nd Year)

CHSE Odisha Class 12 Political Science Book Solutions in English Medium

Unit 1 Democracy in India

Unit 2 Democratic Process in India-I

Unit 3 Democratic Process in India-II

Unit 4 India in World Politics

Unit 5 Issues in International Politics

CHSE Odisha Class 12 Political Science Book Solutions in Odia Medium

Chapter 1 ଗଣତନ୍ତ୍ର

Chapter 2 ଭାରତରେ ରାଜନୈତିକ ଦଳୀୟ ବ୍ୟବସ୍ଥା

Chapter 3 ଭାରତରେ ସଂଘୀୟବାଦ

Chapter 4 ଭାରତରେ ଗ୍ରାମାଞ୍ଚଳ ଓ ସହରାଞ୍ଚଳ ସ୍ୱାୟତ୍ତ ଶାସନ ବ୍ୟବସ୍ଥା

Chapter 5 ଜାତି ଗଠନରେ ପ୍ରତିବନ୍ଧକ

Chapter 6 ଭାରତୀୟ ରାଜନୀତିରେ ସାଂପ୍ରତିକ ପ୍ରସଙ୍ଗ-ଜନପ୍ରିୟ ଆନ୍ଦୋଳନ

Chapter 7 ଭାରତର ବୈଦେଶିକ ନୀତି

Chapter 8 ଆନ୍ତର୍ଜାତୀୟ ସଙ୍ଗଠନ

Chapter 9 ସାଂପ୍ରତିକ ବିଶ୍ଵରେ ନିରାପତ୍ତା ପ୍ରସଙ୍ଗର ପରିବର୍ତ୍ତିତ ପୃଷ୍ଠଭୂମି

Chapter 10 ପରିବେଶ ଓ ପ୍ରାକୃତିକ ସମ୍ପଦ

CHSE Odisha Class 12 Political Science Syllabus (+2 2nd Year)

There shall be two papers in Political Science modeled on the Syllabi of CBSE. Paper-I: TitleFoundation of Political Theory and Indian Government at work (For First Year). Paper-II: Title-Democracy and Nation Building in India and International affairs (For Second Year).

The subject of Political Science modeled on the Syllabi of CBSE consists of two papers as mentioned above. Paper-I is to be covered in the +2 First Year class and Paper-ll is to be covered in the +2 Second Year class. Each paper is divided into two sections and each section is further subdivided into two/three units. Thus there are five units in both Paper-I and Paper II. Periods have been allocated for the respective units approximately. Teachers are advised to take at least those numbers of periods to cover the particular unit. The major concepts and principles should be taught in such a manner as to stimulate higher mental abilities among students like application, logical thinking, analysis, etc., and not factual information. Paper-setters and Examiners are requested to keep the above in mind while setting questions and examining, respectively. Questions should of short (one word/ multiple-choice/ one sentence), medium (50/100 words/ five sentences), and long (500 words or thereabout). Also, Questions of the final/AHS Examination shall cover all five units of Paper -II.

Objectives of the course/syllabus are, as briefly mentioned above are:

  • To enable the students to acquire knowledge about the important concepts, theories, principles, provisions, processes and Institutions of the Indian constitution, and some rudimentary knowledge about International affairs;
  • To acquaint the students with the changing dimension of politics and political theory both in the national and international knowledge domain;
  • To develop an interest among the students regarding problems of the political domain and to find out the possible solution to those problems.

Suggested Reading:

  1. Political Theory- For Class-XI (Published by NCERT, New Delhi)
  2. Indian Constitution at Work- For Class-XI (Published by NCERT, New Delhi)
  3. Contemporary World Politics, For Class-XII (Published by NCERT, New Delhi)
  4. Politics in India, For Class-XII (Published by NCERT, New Delhi)

Second Year CHSE (2022-2023)
Political Science Paper-II
(DEMOCRACY IN INDIA AND INTERNATIONAL POLITICS)

Part A: Politics in India

Unit I Democracy in India

  1. Democracy: Meaning, Types, and Features; Challenge to Democratic Process in India – Inequality, Illiteracy, Regionalism, Naxalite Problem, Gender Inequality. (8 Periods)
  2. Party System in India: Meaning, Types; One Party Dominance, Coalition Politics; Regional Parties. (8 Periods)

Unit II Democratic Process in India-I

  1. Federalism in India: Features, Centre-State relation, Recent Trends in Indian Federalism. (8 Periods)
  2. Local Government in India – Rural and Urban Local Bodies, Composition and Functions. (8 Periods)

Unit III Democratic Process in India-II

  1. Challenges to Nation-Building: Meaning, Communalism, Casteism, Regionalism, Terrorism; Remedies. (8 Periods)
  2. Contemporary issues in Indian Politics: Popular Movements – Women Movement, Environment protection Movement, Development – Displacement Movements. (8 Periods)

Part B: Contemporary World Politics

UNIT-IV (India in World Politics)

  1. Indian Foreign Policy: Basic Features; India and its neighbours-China, Pakistan. (8 Periods)
  2. International Organizations: UN: Major Organs-General Assembly; Security Council; International Court of Justice; Reforms of the UN. India’s position in the UN. International Economic Organizations- World Bank and the IMF. (8 Periods)

UNIT-IV (Issues in International Politics)

  1. Changing Dimension of Security in Contemporary World: Traditional Security Concerns: Arms Race and Disarmament. Non-Traditional Security Concerns: Human security: Global Poverty, Inequality, Health, and Education. (8 Periods)
  2. Environment and Natural Resources: Global Environmental Concerns; Development and Environment; Global Warming and Climate Change. (8 Periods)

BOOK PRESCRIBED:
Bureau’s Higher Secondary (+2) Political Science, Paper-II (English & Odia) Published by Odisha State Bureau of Textbook Preparation & Production, Bhubaneswar.

CHSE Odisha Class 12 Text Book Solutions

CHSE Odisha Class 12 Psychology Book Solutions (+2 2nd Year)

CHSE Odisha 12th Class Psychology Book Solutions (+ 2 2nd Year)

CHSE Odisha 12th Class Psychology Book Solutions in English Medium

Unit 1 Life Span Development & Self and Personality

Unit 2 Stress: Meeting Life Challenges & Physical Environment and Behaviour

Unit 3 Group Processess and Leadership & Counselling Process

Unit 4 Psychological Disorder & Therapeutic Approaches

Unit 5 Statistics in Psychology

CHSE Odisha 12th Class Psychology Book Solutions in Odia Medium

Unit 1 ଜୀବନବ୍ୟାପୀ ବିକାଶ & ସ୍ଵୟଂ ତଥା ବ୍ୟକ୍ତିତ୍ଵ

Unit 2 ମନୋ-ସାମାଜିକ ଚାପ & ଭୌତିକ ପରିବେଶ ଓ ବ୍ୟବହାର

Unit 3 ସମୂହ ପ୍ରକ୍ରିୟା ଓ ନେତୃତ୍ଵ & ପରାମର୍ଶ ପ୍ରକ୍ରିୟା

Unit 4 ମାନସିକ ବିକାର & ମାନସିକ ବିକାର ଚିକିତ୍ସା

Unit 5 ମନୋବିଜ୍ଞାନରେ ପରିସଂଖ୍ୟାନର ବ୍ୟବହାର

CHSE Odisha Class 12 Psychology Syllabus (+2 2nd Year)

Psychology is introduced as an elective subject at the higher secondary stage of education. The course deals with Psychological knowledge and practices which are contextually rooted, It emphasizes the complexity of cognitive and behavioural processes of human beings within a socio-cultural context. It encourages critical reasoning, allowing students to appreciate the role of social factors in behaviour and illustrates how biology and experience shape behaviour.

In the second year, there will be a council examination and the theory paper carries 70 marks and the practical paper carries 30 marks. The question paper pattern for both papers is same.

QUESTION PAPER PATTERN

Theory Paper:
Group-A: Objective type (Compulsory)
Q.No.1: Multiple choice (Fill up the blanks from all units) 1 mark each × 10 = 10 marks
Q.No.2: Statements “True” or “False” 1 mark each × 10 = 10 marks

Group-B: Short Type
Q.No.3: Short type answer (Answer within two /three sentences) and one has to answer 10 bits out of 12 bits.
2 marks each × 10 = 20 marks
Q.No.4: Short type answer (Answer within six sentences) and one has to answer 3 bits out of 5 bits.
3 mark each × 3 = 09 marks

Group-C: Long Type
Q.No.5: Question No-5 to Q.No-10 (Questions will be from all the units and one has to answer any three questions).
7 marks each × 3 = 21 marks

PRACTICAL
There will be 4 number of questions and the examinee is to choose/draw 2 number of questions through the lottery and is to conduct any one question out of the two questions.
Distribution of marks :
Record – 03
Viva -Voce – 07
Conduction & Report writing – 20
Total marks – 30

PSYCHOLOGY IN APPLICATION
SECOND YEAR
Total Marks – 100
Theory – 70 marks
Practical – 30 marks

Theory
UNIT-I
1. Life span development [10 Periods]
This chapter deals with variations in development and developmental tasks across the life span.
a) Meaning of development – Life span perspective
b) Principles of development
c) Stages of development: Pre-natal stage, Infancy, childhood stage, Adolescence, Adulthood and old age.

2. Self and Personality [9 Periods]
This chapter focuses on the study of self and personality in the context of different approaches in an effort to appraise the person. The assessment of personality will also be discussed.
a) Concept of self and personality
b) Personality types and traits
c) Assessment of Personality
This chapter deals with the nature of stress and strategies to cope with stress.
a) Meaning, Nature and causes of stress.
b) Coping strategies to deal with stress.

UNIT-II
3. Stress: Meeting life challenges [6 Periods]
This chapter deals with the nature of stress and strategies to cope with stress.
a) Meaning, Nature and causes of stress.
b) Coping strategies to deal with stress.

4. Physical environment and behaviour. [6 Periods]
This chapter focuses on the application of psychological understanding of human-environment relationship.
a) Human impact on the environment: Noise Pollution, Crowding, Natural disasters.
b) Impact of environment on human behaviour.

UNIT-III
5. Group Processes and leadership. [7 Periods]
This chapter deals with the concept of a group and the role of the leader in a group.
a) Groups: Nature, types and formation.
b) Leadership: Nature, functions and styles of leadership.

6. Counselling Processes [6 Periods]
This chapter focuses on helping the client in living a meaningful and fulfilling life.
a) Meaning and concept of counselling; Goals of counselling.
b) Characteristics of an effective counsellor.

UNIT-IV
7. Psychological disorder [10 Periods]
This chapter discusses the concept of normality and abnormality and the major psychological disorders.
a) Concept of normality and abnormality, criteria of studying abnormal behaviour
b) Causal factors associated with abnormal behaviour.
c) Major Psychological disorders: Anxiety disorders, somatoform disorders and mood disorders.

8. Therapeutic Approaches [6 Periods]
This chapter discusses the purpose and processes to treat Psychological disorders:
a) Nature and Processes of therapy
b) Types of therapy: Psychotherapy, Behaviour therapy, Cognitive therapy and Biomedical therapy.

UNIT-V
9. Statistics in Psychology [10 Periods]
This chapter deals with some basic statistical methods to be used in psychological studies.
a) Frequency distribution
b) Measures of Central Tendency: Computation and uses of mean, median and mode.

PRACTICALS

  1. RCPM (Children) / RPM (Adults)
  2. Case History Method (Preparation of at least one case profile)
  3. Personality Test (Type A/B)
  4. Piagetian Task (Conservation of Liquid Quantity)

Books Recommended:
1. Bureau’s Higher Secondary +2 Psychology Part-II Published by Odisha State Bureau of Test Book Preparation and Production, Bhubaneswar.
2. Psychology Part-II, NCERT.

CHSE Odisha Class 12 Text Book Solutions