Kendriya Vidyalaya Jhajjar(Haryana) · topic “ Role of youth in communal harmony “. 4. Write and practice advertisements – a) situation vacant b) To let c) Situation wanted

Kendriya Vidyalaya Jhajjar(Haryana) Summer Break Holidays Homework (12.05.2017 to 20.06.2017)

Class: XII-Commerce

English CLASS XII 2017-18

ENGLISH SUMMER HOLIDAY ASSIGNMENT

1. Read the novel ‘Ihe Invisible man ‘ .

2. Write the Characters of the following- Mr. Griffin , Mr. Kemp , Marner

3. Write ARTICLE on the following –

a) Communal hatred and violence have time and again threatened to disintegrate our country . But India is

known for assimilation of new religions , cultures and communities . The onus of uniting and integrating

the country despite its diversity is now on the shoulders of its youth. Write an article for a newspaper on the

topic “ Role of youth in communal harmony “.

4. Write and practice advertisements – a) situation vacant b) To let c) Situation wanted

5. a) Write a letter to the editor of a local newspaper highlighting a

civic problem that the residents of your area are facing.

b) Games And sports are not given so much importance in the country as is given to academics . As a result of

this our achievements in the international arena are not very spectacular . Write a letter to the Editor of a

national daily on the importance of sports and games and on the need to create awareness about it. You are

Ashwin / Arpita .




c) Communal hatred and violence have time and again threatened to disintegrate our country . But India is

known for assimilation of new religions , cultures and communities . The onus of uniting and integrating

the country despite its diversity is now on the shoulders of its youth. Write an article for a newspaper on the

topic “ Role of youth in communal harmony “.



civic problem that the residents of your area are facing.

Games And sports are not given so much importance in the country as is given to academics . As a result of this our

achievements in the international arena are not very spectacular . Write a letter to the Editor of a national daily on the

importance of sports and games and on the need to create awareness about it. You are Ashwin / Arpita

Hindi गहृकार्य कक्षा बारहव ीं हररवींश रार् वच्चन की कववता आत्म- परिचय और दिन जल्िी – जल्िी ढलता है कववताओीं में से 2009 – 10 से 2016 – 17 तक

स ब एसई के प्रश्न – पत्रों में आए हुए प्रश्नों और भाव – सौन्दर्य , शशल्प सौन्दर्य को शिखकर िाना | भविन पाठ में से 2009 – 10 से 2016 – 17 तक स ब एसई के प्रश्न – पत्रों में आए हुए प्रश्नों और गद्ाींश पर आधाररत प्रश्नों के

उत्तर शिखकर िाना | शसल्वर – वैड ींग पाठ में से 2009 – 10 से 2016 – 17 तक स ब एसई के प्रश्न – पत्रों में आए हुए प्रश्नों और गद्ाींश पर

आधाररत प्रश्नों के उत्तर शिखकर िाना | भविन के 42 अनुच्छेदों में से 42 प्रश्न शिखना | कववताओीं के 13 पद्ाींशों में से एक – एक प्रश्न शिखना | उपसगय – प्रत्र्र् के दो – दो पषृ्ठ और रचना के आधार पर वाक्र् – भेद शिखकर िाना | पररवार में रहते हुए भ र्शोधर पन्त में अकेिापन क्र्ों है ? पररवार में सामजस्र् कैसे स्थावपत डकर्ा जा सकता है ?

Maths CLASS XII 2017-18MATHS HOLIDAY HW (SUMMER VACATION)

Collect 5 problems from each of the topics mentioned below and solve them.Make sure that all types of

questions are covered with varying difficulty levels.

Types of problems

1) Construction of matrix of different orders under different conditions

2) Using e-row transformation find the inverse( Third order matrix)

3) Writing a matrix as a sum of symmetric & a Skew symmetric matrix

4) Verifying properties of matrices: a) (AB)'=B’A’ b) (AB)-1=B-1A-1

5) Solution of equations by matrix method (all types of problems)

6) Solving determinants by using properties

a) Without expanding

b) Where expansion is allowed

7) In your fair copy do all the problems of text book from chapter1

8) Write the Gist of the 3 lessons mentioned (ie All formulae & other related concepts given at the end of each

chapter

Economics 1) What do you mean by economic problem? Why does an economic problem arise? Explain the problem of

‘what to produce’ with the help of an example.

2) Explain the problem of ‘how to produce’ with the help of an example.

3) Define opportunity cost, marginal opportunity cost and in economy.

4) Define production possibility curve(PPC) and explain its main characteristics.

5) Distinguish between micro and macro economics.

6) Define the law of Diminishing Marginal Utility with diagram and table.

7) Define consumer equilibrium. Explain one (single) commodity model of consumer equilibrium through utility

analy.

8) What do you mean by Indifference curve? State its main features.

9) Define Budget line. Give the formula for calculating the slope of the budget line. Briefly explain the factors that

cause changes in the Budget line.

10) Explain the concept of consumer equilibrium with help of indifference curve approach.

11) What do you mean by demand? Explain the determinants of demand for a commodity.

12) What do you mean by increase in demand? Name any five factors that shift the demand curve to the right.

13) Explain the law of demand with the help of a demand schedule and diagram.

14) How is demand of a commodity affected by change in the price of related goods?

15) Distinguish between:

a) Change in demand and change in quantity demanded

b) Contraction of demand and decrease in demand.

16) Define price elasticity of demand. Briefly explain the factors affecting price elasticity of demand.

17) What will be the elasticity of demand at different points of a straight line demand curve? Explain with the help

of a diagram.

18) Explain the consumer equilibrium with the help of IC analysis Explanation:

19) State six determinants of market demand?

20) Explain the causes behind law of demand?

21) Explain with the help of diagram the effect of a increase in price of substitute good and complementary good.

22) What are the factors affecting to the demand curve?

23) What 8% decrease in price of a commodity leads to 2% increase in total expenditure, what will you say about

elasticity of demand?

24) A consumer spend 1000 on a good priced at Rs. 8 per unit. When price rises by 25% the consumer continue to

spend 1000 on the good. Calculate price elasticity of demand by percentage method?

25) The Government has started promoting foreign capital. What is the economic value in the context of

production possibility Frontier?

26) What is the impact of ‘Sarve Shiksha Abhiyan’ and skill India Campaign on PPC of the Indian economy?

27) Does massive unemployment shift the PPC to the left what does the slope of PPC ?

28) What is meant by consumer’s equilibrium? State its conditions in case of two commodities approach

29) How is equilibrium achieved with the help of indifference curve analysis?

30) Explain the various degrees of price elasticity of demand with the help of diagrams.

31) A consumer buys 50 units of a good at Rs. 4/- per unit. When its price falls by 25 percent its demand rises

to 100 units. Find out the price elasticity of demand?

32) Price elasticity of demand for wheat is equal to unity and a household demands 40 Kg of wheat when the

price is Rs.1 per kg. At what price will the household demand 36 kg of wheat?

33) The quantity demanded of a commodity at a price of Rs.10 per unit is 40 units. Its price elasticity of demand

is -2. Its price falls by Rs.2/- per unit. Calculate its quantity demanded at the new price.

34) Explain Consumer’s Equilibrium in case of One Commodities with schedule and diagram:

Students are supposed to pick any one of the suggested Projects: 1) Micro and Small Scale Industries. 2) Food supply channel in India.

3) Contemporary employment situation in India. 4) Disinvestment Policy 5) Health Expenditure (of any state) 6) Goods and Service Tax act 7) Inclusive growth strategy 8) Human Development in India 9) Self help growth

Students may work upon the following: 1) Introduction 2) Details of the topic

3) Pros and cons of the economic event/happening 4) Major criticism related to the topic

Make a PPT at least 15-20 slides related your syllabus lesson wise.

P.H.E. HOLIDAY HOME WORK CLASS XII

1) Make a sports file of current event of May /june2017?

2) What is balance diet and role of diet on sports person?

3) Solve the question paper of April (monthly) test?

4) write the history, rules ,skill and technique of your choice game sports practical file ?

5) Draw a fixture of 21 teams on the basis of knockout system?


Class: XII-Commerce

English CLASS XII 2017-18





4. Communal hatred and violence have time and again threatened to disintegrate our country . But India is known

for assimilation of new religions , cultures and communities . The onus of uniting and integrating the country

despite its diversity is now on the shoulders of its youth. Write an article for a newspaper on the topic “ Role of

youth in communal harmony “.



a. civic problem that the residents of your area are facing.

7. Games And sports are not given so much importance in the country as is given to academics . As a result of this

our achievements in the international arena are not very spectacular . Write a letter to the Editor of a national

daily on the importance of sports and games and on the need to create awareness about it. You are Ashwin /

Arpita .














Arpita Hindi गहृकार्य कक्षा बारहव ीं

हररवींश रार् वच्चन की कववता आत्म- परिचय और दिन जल्िी – जल्िी ढलता है कववताओीं में से 2009 – 10 से 2016 – 17 तक




Maths CLASS XII 2017-18MATHS HOLIDAY HW (SUMMER VACATION)



Types of problems











chapter

Economics 35) What do you mean by economic problem? Why does an economic problem arise? Explain the problem of

‘what to produce’ with the help of an example.

36) Explain the problem of ‘how to produce’ with the help of an example.

37) Define opportunity cost, marginal opportunity cost and in economy.

38) Define production possibility curve(PPC) and explain its main characteristics.

39) Distinguish between micro and macro economics.

40) Define the law of Diminishing Marginal Utility with diagram and table.

41) Define consumer equilibrium. Explain one (single) commodity model of consumer equilibrium through utility

analy.

42) What do you mean by Indifference curve? State its main features.

43) Define Budget line. Give the formula for calculating the slope of the budget line. Briefly explain the factors that

cause changes in the Budget line.

44) Explain the concept of consumer equilibrium with help of indifference curve approach.

45) What do you mean by demand? Explain the determinants of demand for a commodity.

46) What do you mean by increase in demand? Name any five factors that shift the demand curve to the right.

47) Explain the law of demand with the help of a demand schedule and diagram.

48) How is demand of a commodity affected by change in the price of related goods?

49) Distinguish between:

c) Change in demand and change in quantity demanded

d) Contraction of demand and decrease in demand.

50) Define price elasticity of demand. Briefly explain the factors affecting price elasticity of demand.

51) What will be the elasticity of demand at different points of a straight line demand curve? Explain with the help

of a diagram.

52) Explain the consumer equilibrium with the help of IC analysis Explanation:

53) State six determinants of market demand?

54) Explain the causes behind law of demand?

55) Explain with the help of diagram the effect of a increase in price of substitute good and complementary good.

56) What are the factors affecting to the demand curve?

57) What 8% decrease in price of a commodity leads to 2% increase in total expenditure, what will you say about

elasticity of demand?

58) A consumer spend 1000 on a good priced at Rs. 8 per unit. When price rises by 25% the consumer continue to

spend 1000 on the good. Calculate price elasticity of demand by percentage method?

59) The Government has started promoting foreign capital. What is the economic value in the context of

production possibility Frontier?

60) What is the impact of ‘Sarve Shiksha Abhiyan’ and skill India Campaign on PPC of the Indian economy?

61) Does massive unemployment shift the PPC to the left what does the slope of PPC ?

62) What is meant by consumer’s equilibrium? State its conditions in case of two commodities approach

63) How is equilibrium achieved with the help of indifference curve analysis?

64) Explain the various degrees of price elasticity of demand with the help of diagrams.

65) A consumer buys 50 units of a good at Rs. 4/- per unit. When its price falls by 25 percent its demand rises

to 100 units. Find out the price elasticity of demand?

66) Price elasticity of demand for wheat is equal to unity and a household demands 40 Kg of wheat when the

price is Rs.1 per kg. At what price will the household demand 36 kg of wheat?

67) The quantity demanded of a commodity at a price of Rs.10 per unit is 40 units. Its price elasticity of demand

is -2. Its price falls by Rs.2/- per unit. Calculate its quantity demanded at the new price.

68) Explain Consumer’s Equilibrium in case of One Commodities with schedule and diagram:

Students are supposed to pick any one of the suggested Projects: 2) Micro and Small Scale Industries. 2) Food supply channel in India.

3) Contemporary employment situation in India. 4) Disinvestment Policy 5) Health Expenditure (of any state) 6) Goods and Service Tax act

7) Inclusive growth strategy 8) Human Development in India 9) Self help growth

Students may work upon the following: 2) Introduction 2) Details of the topic

3) Pros and cons of the economic event/happening 4) Major criticism related to the topic

Make a PPT at least 15-20 slides related your syllabus lesson wise.

Buisness Studies

SUMMER VACATIONHomework 2017-18 BUSINESS STUDIES (XII)

One mark Questions: Q.1 Smart industries is able to achieve the target production of 5,000 units within time period. However, to achieve the target on time, additional Rs.20,000 were paid as overtime wages to employees. Do you think smart industries is effective and efficient in its working? Q.2 Management is required in all kinds of organizations, whether economic, social, political. Which characteristic of mgt.is highlighted in the statement? Q.3 State any one principles of scientific management. Q.4 Why it is important for business enterprises to understand their environment? Explain Q.5 ‘ Business environment includes both ‘ specific and general forces. ’ List any four specific forces. Q.6 What is meant by effectiveness in mgt. ? Q.7 List any two social objectives of mgt. Q.8 Which function of mgt. is known as essence of mgt.? Q.9 Name the function of mgt., which ensure work accomplishment as per plan. Q.10 What do mean by efficiency ? Q.11 Give any two characteristics of Management. Q.12 A Company has achieved the target sales of 10,000 units but the advertisement expenditure has Crossed the target limit. Is the performance of the company efficient and effective? Q.13 At which level of management the managers are responsible for the welfare and survival of the organization? Q14 Name the technique , which act as the strongest motivator for a worker to reach standard performance. Q.15In your school all the books are kept in the office , chalks in the library and office records in the staffroom .which principle is being overlooked . 3,4 marks question Q.16Rajat is working as ‘Regional Manager’ in Tifco Ltd. Name the level at which he is working. Explain any three functions he will perform as Regional Manager in the company. Q.17 Explain any three impacts of Government policy changes on business and industry. Q.18 Explain any two techniques of Taylor’ s Scientific Management. Q.19 “Mgt. is considered as a full-fledged profession. Do you agree with this statement? Give reasons t o Support your answer. Q.20Bhuvan is the manager of northern division of a large corporate house.At what level does he workIn the organization? What are her basic functions ? Q.21 Name and explain the technique of Taylor which is the strongest motivators for workers to reach Standard performance Q.22Sohan is a worker in Liberty industries, a shoe making co. He is regularly provided instructions by one of his superior. Another superior lays down the sequence of operations. His speed, efficiency and quality of work are also supervised by different superior, who specialize in their respective fields. (i) Indentify the technique of scientific mgt. followed by liberty industries. (ii) What is the significance of having so many superiors on sohan? (iii) Which principle of mgt. is not applicable in this kind of organization? Q.23 Explain the principle of Scalar chain and gang plank. Q.24Akhil and Shyam, having same educational qualifications, work as sales executives in a water purifier co. Akhil gets a salary of Rs.14,000p.m.andshyam gets Rs. 16,000p.m.as he belongs to the hometown of sales manager. Name and explain the principle of mgt. violated in this case? Q.25 Explain the principle of unity of command.Q.6The Production manager of an automobile company asked the foreman to achieve a target production of 200 scooters per day. But he did not give him the authority to requisition tools and materials from the stores department. Can the production manager blame the foreman if he is not able to achieve the desired target? Explain briefly the principle relating to the situation. Q.26 Mr. Gupta is a production manager in a leather manufacturing unit. He was very strict and does not have cordial relations with his subordinates. So, the subordinates always feel they are under stress and they are not working in a good environment. The subordinates always take least initiative and fear to express their problems or suggestions before Mr. Gupta. What do you think is wrong with Mr. Gupta? Name the values which are ignored. Q.27 Principal of Taylor and Fayol are mutually complementary. One believed that management should not close its ears to constructive suggestion made by the employees, while the other suggested that a good company should have an employee suggestion system, whereby suggestions which result in substantial time or cost reduction should be rewarded. Identify and explain the principles of Taylor and Fayol referred in the above para. Q.28 Telco ltd. Is manufacturing files and folders from the old clothes to discourage use of plastic files and folders . For this they employ people from nearby villages where very less job opportunities are available . An employee , Harish , designed a plan for the cost reduction but it was not welcomed by the Production Manager . Another employee gave some suggestion for improvement in design , but it was also not appreciated by the production manager . State and explain the principle of management violated in this para . Identify any 2 values that the company wants to communicate to the society. Q.29 Lokesh is appointed as a mechanic in repair and maintenance department of Starlite industries. Howere, he not allotted a particular workshop and everyday he has to carry tools from one place to another. As a result, the workers have to search for Lokesh in case any problem in the machine. (i) Which management principle is lacking in Starlite industries? (ii)Explain the principle. (iii)What should be done to overcome the problem of workers? . Q.30. Kushal ltd is a leading automobile company in which the various departments are setting up their own objectives without paying any interest to the organizational objectives name the values which are ignored by the departmental heads and the impact of it on the organization. 5,6 marks questions Q.31 Explain by giving any five reasons ,why a proper understanding of management principles is necessary. Q.32 Identify the dimension of business environment highlighted in the following cases: (i) Demand for new cloths increases during festive session. (ii) MNCs getting permission to enter in to Indian market. (iii) Preference of 3G phones instead of 2G phones. (iv) An increase in income of people raises the demand for products. (v) Consumer Protection Act prevents malpractics by business firms.

Q.33. In spite of best effort of managers, sometimes planning fails to achieve desired result due to its limitations. Explain any six reasons to justify the statement. Q34. “Planning is of vital importance in the managerial process.” Do you agree ? Explain in brief any five reason in support of your answer Q35 Mgt. is considered to be both science and an art. Explain . Q.36 Coordination is the essence of mgt. Do you agree ? Give reasons. Q.37` Success of an organization largely depands upon its management .”Explain any five reasons to justify the statement. Q.38 Explain any five points regarding significance of principle of mgt. Q.37 Explain the following: (a) liberalisation (b) privatization (c) globlisation Q.39Your father is working in an MNC as chief operating officer. At what level of mgt. he is working. Explain any five functions of that level. Q.40Sitaram the production manager of X Ltd., wants to increase the speed of packaging. In order to identify and eliminate unnecessary movements of workers in packaging, he installed a movie camera in the factory. (i)Which technique of scientific management is adopted by Sitaram. (ii) How can this technique help X Ltd? Q.41 A company is manufacturing garments. The manager wants to increase the profits by

(i) Purchasing new high speed machines(ii) increasing the sale price.(iii) Using waste material in

manufacturing stuffed toys .He decided that using waste material to increase the profit is the best

solution for him (a) Identify the concept of management involved (b) Mention the steps involved in the

above process (c) To complete the process of the concept identified in(a) what further steps does the

manager have to take

Q.42 The RBI has introduced the bank rate to face the situation of inflation. Identify the dimension of business environment and explain. 4 Q. 43 The court passed an order to ban polythene bags as: (i) These bags are creating many environmental problems which affect the life of people in general. (ii) Society in general are more concerned about quality of life. Identify the different dimensions of Business Environment and state any two values communicated to the society. Q.44 The court passed an order that all the Schools must have water purifiers for the school children as:

a. Society in general is more concerned about the quality of life.

b. Innovative Techniques are being developed to manufacture water purifiers at competitive rates

c. Incomes are rising and children at homes are also drinking purified water . The government is also

showing positive attitude towards the water purifiers Business

Identify the different dimensions of business environment by quoting from the above details Q.45 Name the scientific technique which emphasis on the increasing role of supervisors for each and every small task related to planning and production ? explain it with the help of a diagram PROJECT : Principles of management

Accountancy K.V JHAJJAR Summer Vacation Homework 2017-18 (ACCOUNTACY)

One mark questions Q 1 Give the average period in months for charging interest on drawing for the same amount withdrawn at the beginning of each quarter. Q.2 A and B are partners are partners in a firm without a partnership deed, A is an active partner and claimsa salary of Rs.10,000 per month state with reasons whether the claim is valid or not. Q.3 What do mean by reconstitution of partnership firm ? Give two examples of reconstitution of Partnership Firm? Q.4 State the ratio in which partners share the amount of goodwill, when there is a change in profit sharing ratio amongst the existing partners? Q.5 Can a partner be exempted from sharing the losses in a firm. If yes under what circumstances1 Q.6 Preeti, Usha and Teena are partners in a firm and do not have a partnership agreement. Teena had given a loan of Rs. 10,000 to the firm and expects an interest @ 10% for the loan. The other partners do not agree to this. Should Teena be given interest at the desired rate? Give reason. Q.7 What is limited liability of a partner ? Q.8 Why is sacrificing ratio calculated ? Q.9 Give any one distinction between sacrificing ratio and gaining ratio. Q.10 Define goodwill. Q.11How does efficiency of mgt. affect the goodwill of a firm? Q.12 Name methods of valuation of goodwill. Q.13 State the main rights that a newly admitted partner acquires in a firm. Q.14 How does the factor location affect the goodwill of a firm ? Q.15 Where would you record interest on drawing when capital accounts are fluctuating?

3,4,6MARKS QUESTIONS

Q.16. Kavita, Meenaand Gauri are partners doing a paper business in Ludhiana. After the accounts of (4)

partnership have been drawn up and closed, it was discovered that for the years ending 31st March

2013 and 2014, Interest on capital has been allowed to partners @ 6% p. a. although there is no

provision for interest on capital in the partnership deed. Their fixed capitals were 2,00,000;

1,60,000 and 1,20,000 respectively. During the last two years they had shared the profits as under:

Year Ratio

31 March 2013 3 : 2 : 1

31 March 2014 5 : 3 : 2

You are required to give necessary adjusting entry on April 1, 2014. (3)

Q.17After completing MBBS, Nirmala suggested to her classmate Rajeev to form a partnership to run hospital in the locality inhabited by low income group. After along thought, he agreed to proposal. Since they did not have sufficient resources for implementing the proposal they persuaded a rich friend Narayana, who contribute the required capital. All of them formed a partnership on the following terms: (i)Nirmala, Rajeev and Narayana will contribute Rs. 6,00,000, 10,00,000 and Rs. 20,00,000/-. (ii Interest on capital @ 5% p.a. will be allowed (iii) The profit of the firm for the year ended 31st March 2012 were Rs. 9,00,000/- Identify any two value which according to you motivate them to form the partnership

Prepare profit and loss app. A/C. (2+2 = 4)

Q.18 A firm earns a profit of Rs. 40,000 per year. In the same business 10% return is generally expected. The total assets

of the firm are Rs. 3,00,000. The value of outsiders’ liabilities is Rs 40,000. Find the value of Goodwill. (4)

Q 10. Ramesh and Suresh were in a firm sharing profit in the ratio of their capitals contributed on commencement of business which were Rs. 1,60,000 and Rs. 1,20,000 respectively. The firm started business on April 1, 2011. According to the partnership agreement, interest on capital and drawing are 12% and 10% respectively. Ramesh and Suresh are to get a monthly salary of Rs. 4000 and 6000 respectively and Commission to Ramesh @ 2% on sales. The profit for the year ended March 31, 2012 before making above appropriation was Rs. 2,04,000. The drawing of Ramesh and Suresh wee Rs. 80,000 and Rs. 1,00,000 respectively. Interest on drawings amounted to Rs. 4000 for Ramesh and 5000 for Suresh. Sale for the year ended 31st March 2012 was 2,40,000. 6 Prepare Profit and loss Appropriation Account and Partner’s capital accounts, assuming that their capital are fluctuating. Q.19. A, B and C are partners in a firm. When the Accounts were closed on 31st March,2012, it was found that Interest on Capital was allowed @ 4% instead of 6%p.a.The capitals of partners were: A Rs.1,00,000 B Rs.80,000 C Rs.60,000 Give the necessary adjusting entry with proper workings. (3) Q.20. The average profits for last 5 years of a firm are Rs. 20,000 and goodwill has been worked out Rs. 24,000 calculated at 3 years purchase of super profits. Calculate the amount of capital employed assuming the normal rate of interest is 8 %. (3) Q.21. Anand and Sonu were childhood friends and colleagues in a company who Were thinking of starting something of their own someday. On 1st Jan, 2011 they thought of starting a stationery depot for the financially backward children of their area.They also admitted Manoj a differently abled educated youth who was unemployed as a partner of their firm without any capital contribution. Sonu also approached RohitKaul from Jammu, who was also eager to start something of this sort having lot of funds at his disposal, and persuaded him to join them.The following terms where agreed upon: i) Anand, Sonu and Rohit will contribute 30,000; 50,000 and 4,00,000 respectively as capital. ii) Profit will be shared equally. iii) Interest on capital will be allowed @ 5% p.a. The Profits of the firm for the year ended 31st Dec 2011 were 50,000. Identify any two values which according to you motivated them to start the partnership firm. (2) b) Prepare Profit & Loss Appropriation Account of the firm for the year ending 31st Dec 2011. (2) (4) Q.22. X, Y and Z were partners in a firm. Their capitals were Rs.1,00,000; Rs.2,00,000 and Rs.2,50,000. Their agreement provided the following: (i) The profit sharing ratio will be 1:2:2 (ii) X is being guaranteed a share of Profit Rs.50,000 (iii) Y will be allowed a salary of Rs.12,000 p.a. (iv) Interest on capital will be allowed @ 12% p.a. The interest on drawings were Rs.500, Rs.600, and Rs. 800 for X,Y and Z. The firm earned a profit of Rs.2,88,900 during the year. Prepare profit & loss appropriation account and show the workings. (6) Q.23 A firm earns Rs 60,000 as its Annual profits , The normal rate of profit is 10% , Assets of the firm are Rs.7,20,000 and liabilities are Rs.2,40,000. Find the value of Goodwill byCapitalisation Method (3) Q.24 Differentiate between Fixed capital and Fluctuating Capital method (3 Q.25 What is the nature of goodwill ?.state when there is a need to calculate the goodwill Q.18 Calculate the interest on capital @ 10% pa if it is not a charge on profit . where A has Rs 300000 and B has Rs.400000 as capital . The net profit of the accounting year is Rs. 56,000. Prepare the P/L Appropriation A/C ( 3) Q.26Calculate Interest on capital @ 10% pa in the following case On 31st march 2016 the balances of capital A/C were Rs. 100000,80000 and 50000 after making the adjustment of drawings which were Rs. 4000,3000,5000. The net profit Rs. 25000 was already distributed in 3:1:1 before arriving at these figures ( 4) Q.27X,Y and Z are sharing profits and losses in the ratio of 5:3:2.They decided to share future profits and losses in 2:3:5 with effect from 1st April 2015. They also decided to record the effect of the following accumulated profits , Losses and reserves without affecting their book values by passing a single entry . General Reserve Rs.6000 Profit & Loss ( Cr.) Rs. 24,000 Advertisement Suspense A/C Rs.12,000 Pass necessary adjusting entry ( 6) Q.28On 31st March 2015 , Capital Accounts of E,M and A after making adjustments for profits and Drawings were as follows E – Rs.8,00,000: M –Rs.6,00,000 and A RS. 4,00,000. Subsequently it was found that , Interest on capital and Interest on Drawings had been omitted . The partners were entitled to interest on capital @ 5% pa. Drawings during the year were E- Rs. 2,00,000 : M –Rs.1,50,000 and A –Rs. 90,000. Interest on drawings chargeable to partners are as follows E-RS.5,000 : M –Rs. 3,600 and A RS. 2,000. The net profit of the year amounted to Rs.12,00,000 and the profit sharing Ratio is 3:2:1 Pass the necessary adjustment entry and show your workings clearly ( 6) Q.29Amal&Bimal are partners in a firm sharinf profits and loses in the ratio of 4:1 . On 1stapril 2014 their capitals stood at Rs. 50,000 & 40,000 respectively . The firm earned a net profit of Rs. 1,75,000 in the year ended 31.3.2015. prepare the Profit & Loss Appropriation A/C and partners capital A/C after considering the following adjustments Interest on capital @ 5% pa : Interest on drawings @5% pa , The drawings being AmalRs. 15,000 and BimalRs. 10,000 6 Q.30. Nanak, Rishab and Mayank are partners in a firm. They contributed Rs 90,000 each as capital three year ago. At that time Mayank agreed to look after the business as Nanak and Rishabh were busy. The profits for the past 3 years were Rs. 60,000, Rs, 1,00,000 and Rs.1,10,000respectivaly. While going through the books of accounts, Nanak noticed that the profit is distributed in 1:1:2. When he enquired from Mayank about this, he answered that since he looked after the business he should get more profit. Nanak did not agree and it was decided to distribute equally respectively for the last three years. You are requested to make necessary correction in the books of accounts of the firm by passing an adjustment entry. Identify the value which is not being practiced by Mayank at the time of divisions of profits. (3+1=4)

Q.31 The books of a business showed that the capital employed is Rs. 5,00,000 and the profits for the last five years were: Rs. 40,000: Rs. 50,000; Rs. 55,000; Rs.70,000 and Rs. 85,000. You are required to find out the value of goodwill based on 4 years purchase of the super profits of

the business, given that the normal rate of return is 10%.

Q.32 Nisha, Sojan and Honey are partners sharing profits and losses in the ratio of 5 : 3 : 2. The partnership deed provides for charging interest on drawing’s @ 10% p.a. The drawings of Nisha, Sojan and Honey during the year ending December 2015 amounted to Rs. 40,000, Rs. 30,000

and Rs. 20,000 respectively. After the final accounts have been prepared, it was discovered that interest on drawings has not been taken into consideration. Give necessary adjusting journal entry.

Q.33 Monika, Sushmita and Garima entered into partnership on 1st April 2012 to share profits

and losses in the ratio of 2:3:5. Garima is a physically challenged lady. Sushmita, however, personally guaranteed that Garima’s share of profit after charging interest on capital @5% p.a.would not be less than Rs. 200000 in any year. The capital contributions were: Monika Rs. 6, 00,000, SushmitaRs. 4, 00,000 and GarimaRs. 3, 00,000. The profit of the year ended on 31st March 2013 before allowing interest on capital amounted to Rs. 3,20,000

Identify the three human values involved in this case and prepare Profit and Loss Appropriation Account. Q34 Calculate the interest on drawings of Mr.Aman @8% p.a. for the year ended 31.3.2009,in each of the following cases(i) If he withdrew Rs.5000 in the beginning of each quarter. (ii)If he withdrew Rs. 6000 at of the end of the each quarter. (iii) If he withdrew Rs.10000 during the middle of each quarter. Q.35 Arvind and Atul are two partners sharing profits in the ratio of 2:1. Arvind withdrew Rs.4000 in the beginning of every month and Atul withdrew Rs.4000 at the end of the every month. Calculate interest on drawing at 12% p.a. Q.36Arun and Arora were partner in a firm sharing profits in the ratio of 5:3. Their fixed capita on 1-4-2010 were :ArunRs 60,000 and AroraRs 80,000. They agreed to allow interest on capital @ 12% p.a. and to charge on drawing @ 15% p.a. The profit of the firm for the year ended 31-3-2011 before all above adjustment was Rs 12,000. The drawing made by Arun were Rs 2,000 and by AroraRs 4,000 during the year . Prepare Profit and Loss Appropriation Account of Arun and Arora. Show your calculations clearly. The interest on capital will be allowed even if the firm incurs loss. Q.37 A,B,C and D are partners sharing profits and losses in the ratio 4:3:3:2. Their respective fixed capital on 31.3.2010 were Rs 60,000,Rs 90,000, Rs 1,20,000 and Rs 90,000. After preparing the final account for the year ended 31.3.2010, it was discovered that interest on capital @ 12% p.a. was not allowed and interest on drawings amounting to Rs 2,000, Rs 1,500 and Rs 1,000 respectively was also not charged. Pass the necessary adjustment journal entry showing your working clearly. Q.38 Ram, Shyam and Mohan are partners in a firm sharing profits and losses in the ratio of 2:1:2. Their fixed capitals were Rs 3,00,000, Rs 1,00,000 and Rs 2,00,000 respectively. Interest on capital for the year 2013 was credited to them @ 9% p.a. instead of 10%p.a. The profit for the year before charging interest was Rs 2,50,000. Prepare necessary adjustment entry. Q.39 A,B and C entered into partnership on 1st April, 2012 to share profits and losses in the ratio of 4:3:3. A, however, personally guaranteed that C’s share of profit after charging interest on capital @ 5% p.a. would not be less than Rs 40,000 in any year. The capital contribution were: A-Rs 3,00,000, B-Rs 2,00,000and C-Rs 1,50,000. The profit for the year ended on 31st March, 2013 amounted to Rs 1,60,000. Show the profit and loss appropriation account. Q.41 A and B were partners in a firm sharing profits and losses in the ratio of 3:2. With effect from 1stJanuary , 2012 they agreed to share profit equally. For this purpose, the goodwill of the firm was valued at Rs 30,000. Pass the necessary journal entry for the treatment of goodwill. Q.42 A and B are partners sharing profits in the ratio of 3:2. C is coming for 1/3 rd share and is to pay Rs.30,000as premium for goodwill but pays only Rs. 20,000. He also brings Rs.1,50,000as capital. Goodwill already appears in the books of accounts Rs.50,000. A and B decide to share profits and losses equally. Give journal entries . Q.43Rini and Nikita are in partnership sharing profits in the ratio of 2:3. With effect from 1st April, 2012 they agreed to share profits in the ratio of 1:2. For this purpose, the goodwill of the firm is to be valued at Rs 6,80,000. The reserves appear in the books at Rs 2,20,000. Partners neither want to show the goodwill in the books nor to distribute the reserves. You are equired to give effect to the change by f passing a single journal Entry. Q.44 J and K are partners in a firm. Their capitals are J Rs 3,00,000 and K Rs 2,00,000. During the year ended 31.3.2010, the firm earned a profit of Rs 1,50,000. Assuming that the normal rate of return is 20%, calculate the value of goodwill of the firm by capitalisation method and by super profit method if the goodwill is valued at 2 years’ purchase of super profits. Q.45 A and B are partners in a firm sharing profits and losses in the ratio of 3:2.A new partner C is admitted. A surrenders 1/5th of his share and B 2/5th of his share in favour of C . For purpose of’s admission, goodwill of the firm is valued at Rs 75,000 and C bring his share of goodwill in cash which is the firm’s books. Journalise the above transaction. Q.46 Ashok and Ravi were partners in a firm sharing profits in the ratio of 7:3. They admitted Chander as a new partner. The profit-sharing ratio between Ashok, Ravi and Chander will be 2:2:1. Chander brought Rs. 24,000 for his share of goodwill, pass necessary journal entries for the treatment of goodwill. Q.47 The goodwill of a firm is estimated at two years’ purchase of the average profit of the last three years . The profits are as under: 2011- Rs. 20,000 { including an abnormal gain of Rs 5,000 } 2012- Rs. 40,000 { after charging an abnormal loss of Rs 10,000 } 2013- Rs 42,000 { excluding Rs 2.000 as insurance premium of property now to be insured calculate the amount of goodwill. Q.48 A,B and C were partners having capitals of Rs.60,000; Rs.60,000 and Rs.80,000 respectively. According to the partnership deed, the partners were entitled to interest on capital @5% p.a. C being working partner was also entitled to a salary of Rs.6,000 p.a. The profits were to be divided as follows: (a) The first Rs. 20,000 in proportion to their capitals. (b) Next Rs. 30,000 in the ratio of 5:3:2. (c) Remaining profits to be shared equally. The firm profit of Rs.1,56,000 before charging any of the above items. Prepare the Profit &Loss Appropriation A/c. 6

Q.49 Murari and Vohra were partners with capitals of Rs.1,20,000 and Rs. 1,60,000 respectively .On 1.4.2014 ,they admitted Yadav as a partner for 1/4th share in profits on his payment of Rs. 2,00,000 as his capital and Rs. 90,000 for his share of goodwill. On that date, the creditors of Murari and Vohra were Rs.60,000 and Bank Overdraft was Rs.15,000 .Their asssets apart from Cash included Stock Rs. 10,000; Debtors Rs.40,000;Plant and Machinery Rs.80,000;Land and Building Rs.2,00,000. It was agreed that stock should be depreciated by Rs.2,000;Plant and Machinery by 20%, Rs.5,000 should be written off as bad debts and Land and Building should be appreciated by 25%. Prepare Revaluation A/c, Partner’s Capital A/c and the Balance Sheet of the new firm. Q.50 Sharma ,Verma and Khan were partners sharing profits and losses in 5:3:2ratio. They decided to share the future profits equally. For this purpose ,the goodwill of the firm valued at Rs.1,20,000 . Pass an adjustment entry for the treatment of goodwill due to change in the profit-sharing ratio. 4 PROJECT: Comprehensive problem – journal entry, ledgers, trial balance ,trading ,profit and loss a/c,balance sheet

P.H.E. HOLIDAY HOME WORK CLASS XII 6) Make a sports file of current event of May /june2017?



9) write the history, rules ,skill and technique of your choice game sports practical file ?


WE Make any 2 new decorative charts using waste material.

Social Service.

Planting Trees around your house

Keeping your residential surroundings clean by educating people around you.


Class: XII-Science English CLASS XII 2017-18















Arpita .














Arpita Hindi गहृकार्य कक्षा बारहव ीं

हररवींश रार् वच्चन की कववता आत्म- परिचय और दिन जल्िी – जल्िी ढलता है कववताओीं में से 2009 – 10 से 2016 – 17 तक




Maths CLASS XII 2017-18 MATHS HOLIDAY HW (SUMMER VACATION)



Types of problems











chapter

Computer Sc.

Separate Link… Visit www.kvjhajjar.edu.in

Physics CLASS – XII 1. Solve the question paper of month of April in home work copy.

2. Write the practical ohm’s law in practical copy.

3. Solve the 10 question paper given by teacher with the help of book.

4. Learn and write the first unit of electrostatics.

5. Learn and study second and third unit current electricity and magnetic effect of electric current. UNIT 01 ELECTROSTATICS Q.1 Two equal balls having equal positive charge q coulombs are suspended by two insulating strings of equal length. What would be the effect on the force when a plastic sheet is inserted between two? 1 Q.2 Sketch the electric field lines for two point charges q1 and q2 for q1 = q2 and q1 > q2 separated by a distance d. 1 Q.3 what is the electric flux through a cube of side 1cm which encloses an electric dipole? 1 Q.4 Define electric field intensity. Write its SI unit. Write the magnitude and direction of electric field intensity due to an electric dipole of length 2a at the midpoint of line joining the two charges. Q.5 An electric dipole is held in a uniform electric field. (I) Show that the net force acting on it is zero. (ii) The dipole is aligned parallel to the field. Find the work done in rotating it through the angle of 1800. 2 Q.6 (a) Define electric flux. Write its SI unit. (b) a spherical rubber balloon carries a charge that is uniformly distributed over its surface. As the balloon is blow up and increases in size, how does the total electric flux coming out of the surface change? Give reason. 2 Q.7 Two concentric metallic spherical shells of radii Rand 2R are given charge q1 and q2 respectively. The surface charge densities on the outer surfaces of the shells are equal. Determine the ratio q1 : q2. 2 Q.8 (a) Two insulated charged copper spheres A and B have their centre’s separated by a distance of 50cm. what is the mutual force of electrostatic repulsion if the charge on each is 6.5x10-7C? the radii of A and B are negligible compared to the distance of separation.(b) what is the force of repulsion if each sphere is charged double the above amount, and the distance between them is halved? 3 Q.9 Calculate the amount of work done in rotating a dipole moment 3x10-8 Cm, from its position of stable equilibrium to the position of unstable equilibrium, in a uniform electric field of intensity 104N/C. 3 Q.1 Can electric potential at a point be zero, while the electric field is not zero? 1 Q.2 an electron and a proton are brought nearer, how does the potential energy of system Change? 1 Q.3 a hollow metal sphere of radius 5cm is charged such that the potential on its surface is 10V. What is the potential at the centre of sphere? 1 Q.4 Define dielectric constant of a medium. What is the value of dielectric constant for a metal? (2) Q.5 (a) how does the energy stored in a capacitor change if after disconnecting the battery; the plates of a charged capacitor are moved farther? (b) How does the energy stored in a capacitor change if the plates of a charged capacitor are moved farther, the battery remaining connected? 2 Q.6 Calculate the amount of work done in rotating a dipole, of dipole moment 3x10-8 Cm, from its position of stable equilibrium to the position of unstable equilibrium, in a uniform electric field of intensity 104N/C. 2 Q.7 A uniformly charged conducting sphere of diameter 2.5m has a surface charge density 100µC/m2. Calculate (i) charge on the sphere and (ii) total electric flux passing through the sphere. 2 Q.8 An electric dipole of dipole moment Pis placed in a uniform electric field E. write the expression for the torque 𝝉experienced by the dipole. Identify two pairs of perpendicular vectors in the expressions. Show diagrammatically the orientation of the dipole in the field for which the torque is (i) maximum (ii) half the maximum value (iii) zero. Q.9 a parallel plate capacitor is charged by a battery. Which is then disconnected? A dielectric slab is then inserted in the space between the plates. Explain what changes, if any, occur in the values of: (i) capacitance (ii) potential difference between the plates (iii) electric field between the plates, and (iv) The energy stored in the capacitor. 3 Q.10 The two plates of a parallel plate capacitor are 4mm apart. A slab of dielectric constant 3 and thickness 3mm is introduced between the plates with its faces parallel to them. The distance between the plates is so adjusted that the capacitance of the capacitor becomes 2/3rd of its original value. What is the new distance between the plates? 3 UNIT-02 CURRENT ELECTRICITY Q.1 Show variation of resistivity of Si with temperature in a Graph. 1 Q.2 what happens to the power dissipation if the value of electric current passing through a conductor of constant resistance is doubled? 1 Q.3 The emf of a cell is always greater than its terminal voltage. Why? Give reason. 1 Q.4 Define the terms (i) Drift velocity, (ii ) relaxation time. 2 Q.5 State Kirchhoff’s rules. Explain briefly how these rules are justified. 2 Q.6 estimate the average drift speed of conduction electrons in a copper wire of cross-sectional area 1.0x10-7 m2 carrying a current of 1.5A. assume the density of conduction electron to be 9x1028m-3. 2 Q.7 At room temperature (27.00C), the resistance of a heating element is 100ohm. At what temperature does the resistance of the element change to 117ohm? Given that the temperature coefficient of the material of the resistor is 1.70x10-40 C-1. 2

Q.8 Two cells of emf𝜖1 and 𝜀2and internal resistance r1 and r2 respectively are connected in parallel. Deduce the expression for (i) the equivalent e.m.f. of the combination,(ii) the equivalent resistance of the combination and (iii) the potential difference between the points A and B. 3 Q.9 Two cells of emf 1v, 2v and internal resistance 2ohm and 1ohm respectively in (i) series. (ii) parallel. What should be the external resistance in the circuit so that the current through the resistance be the same in the two cases? In which case is more heat generated in the cells? 3 Q.10 Two cells of emf 1.5v and 2v and internal resistance 1ohm and 2ohm respectively are connected in parallel to pass a current in the same direction through external resistance of 5ohm. (a) draw the circuit diagram. (b) using Kirchhoff’s laws, calculate the current through each branch of the circuit and potential difference across 5 ohm resistor. 3 Q.1 a carbon resistor is marked in colour bands of red, black,orange and silver. What is the resistance and tolerance value of resistor? 1 Q.2 what is the effect of heating of a conductor on the drift velocity of free electron? 1 Q.3 two electric bulbs whose resistances are in the ratio 1:2 are connected in parallel to a source of constant voltage. What will be the ratio of power dissipation in these wires?. 1 Q.4 how does the resistivity of (i) a conductor and (ii) a semiconductor vary with temperature? Give reason for each case.2 Q.5 Establish a relation between electric current and drift velocity. 2 Q.6 In the meter bridge experiment, balance point was observed at J with AJ = l. (i) the values of R and X were doubled and then interchanged. What would be the new position of balance point? (ii) if the galvanometer and battery are interchanged at the balance position, how will the balance point get affected? 2 Q.7 At room temperature (27.00C), the resistance of a heating element is 100ohm. At what temperature does the resistance of the element change to 117ohm? Given that the temperature coefficient of the material of the resistor is 1.70x10-40 C-1. 2 Q.8 a potentiometer wire of length 1m has a resistance of 10ohm. It is connected to a 6V battery in series with a resistance of 5ohm. Determine the emf of the primary cell which gives a balance point at 40cm. 3 Q.9 two primary cells of emfs wire 𝜖1 and 𝜖2 (𝜖1> 𝜖2) are connected to a potentiometer wire AB as shown in fig. if the balancing lengths for the two combinations of the cells are 250cm and 400cm, find the ratio of 𝜖1and𝜖2. 3 Q.10 a cylindrical metallic wire is stretched to increase its length by 10%. Calculate the percentage increase in its resistance. OR 3 In a meter bridge, the null point is found at a distance of 40cm from A. if a resistance of 12ohm is connected in parallel with S, the null point occurs at 50.0cm from A determine the values of R and S.

Chemistry Class-12 (1)Revise chapter “solid state“and solve the following questions from Previous years question papers. Q.1 very short answer type carrying one marks (a). What are anistropic substaces (b). Why glass is regarded as an amorphous solid? (C). What type of stochiometric defect is shown by (i) ZnS and (ii) CsCl? (d). How many octahedral voids are there in 1 mole of a compound having cubic closed packed structure? (d).In Corundum, O2– ions from hcp and Al3+ occupy two third of octahedral voids. Determine the formula of corundum. (e).Define the term ‘doping’. (f).Solid A is very hard, electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it? (g).In a p-type semiconductor the current is said to move through holes. Explain. (h).Which type of defects are known as thermodynamic defects? Q.2.short answer type carrying 2or 3 marks (1).Define F–centre. Mention its one consequence. (2)Account for the following : (a) Glass objects from ancient civilizations (b) Window glass panes of old buildings are thicker at the bottom than at the top. (3)In afcc arrangement of A and B atoms A are present at the corners of the unit cell and B are present at the face centres. If one atom of A is missing from its position at the corner, what is the formula of the compound (4)The concentration of cation vacancies in NaCl crystal doped with CdCl2 is found to be 6.02 x 1016mol–1. What is the concentration of CdCl2 added to it? (5) An element with density 𝟐.𝟖𝒈𝒄𝒎−𝟑 forms a 𝒇.𝒄.𝒄. unit cell with edge length𝟒×𝟏𝟎−𝟖cm Calculate the molar mass of the element. (Given: 𝑵𝑨 = 𝟔.𝟎𝟐𝟐× 𝟏𝟎𝟐) (6). Sodium crystallises in a bcc unit cell. What is the approximate number of unit cells in 4.6 g of sodium? Given that the atomic mass of sodium is 23 g mol–1.

(7). In a crystalline solid anions ‘C’ are arranged in cubic close packing, cations ‘A’ occupy 50% of tetrahedral voids and cations ‘B’ occupy 50% of octanedral voids. What is the formula of the solid? (8). Magnetite, a magnetic oxide of iron used on recording tapes, crystalliseswith iron atoms occupying1/ 8 of the tetrahedral holes and1/ 2 of the octahedral holes in a closed packed array of oxides ions. What is the formula of magnetite? (9). A metal crystallises into two cubic lattices fcc and bcc, whose edge length are 3.5Å and 3.0Å respectively. Calculate the ratio of the densities of fcc and bcc lattices. (10). An element of atomic mass 98.5 g mol–1 occurs in fcc structure. If its unit cell edge length is 500 pm and its density is 5.22 g cm–3. Calculate the value of Avogadro constant (11). An element crystallises in a cubic close packed structure having a fcc unit cell of an edge 200 pm. Calculate the density if 200 g of this element contain 24 × 1023 atoms (12). Analysis shows that a metal oxide has a empirical formula M0.96O. Calculate the percentage of M2+ and M3+ ions in this crystal. (13). Examine the given defective crystal: 𝑿+ 𝒀− 𝑿+ 𝒀− 𝑿+ 𝒀− 𝒀− 𝑿+ 𝒀− 𝑿+ 𝒀− 𝑿+ Answer the following questions: (i) Is the above defect stoichiometric or non- stoichiometric? (ii) Write the term used for this type of defect. Give an example of the compound which shows this type defect.

Solution Revise chapter “solution” and solve the following questions from previous cbse question papers 1. Solve the following questions (1).Which of the following is a dimensionless quantity: molarity, molality or mole fraction?

(2).A mixture of chlorobenzene and bromobenzene forms nearly ideal solution but a mixture of chloroform and acetone does not. Why? (3). (i) On mixing liquid X and liquid Y, volume of the resulting solution decreases. What type of deviation from Raoult’s law is shown by the resulting solution? What change in temperature would be observe after mixing liquids X and Y? (ii) What happens when we place the blood cell in water (hypotonic solution)? Give reason. (4). A solution is prepared by dissolving 10g of non-volatile solute in 200g of water. It has a vapour pressure of 31.84 mm Hg at 308K. Calculate the molar mass of the solute. (Vapour pressure of pure water at 308K = 32MM Hg) (5). (i) Gas (A) is more soluble in water than Gas (B) at the same temperature. Which one of the two gases will have the higher value of KH (Henry’s constant) and why? (ii) In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes (6). Calculate the boiling point of solution when 4 g of 𝑴𝒈𝑺𝑶𝟒 (𝑴 = 𝟏𝟐𝟎𝒈𝒎𝒐𝒍−𝟏) was dissolved in 100 g of water, assuming 𝑴𝒈𝑺𝑶𝟒 undergoes completeIonization. (𝑲𝒃𝒇𝒐𝒓𝒘𝒂𝒕𝒆𝒓 = 𝟎.𝟓𝟐𝑲𝒌𝒈𝒎𝒐𝒍−𝟏) (7). (a) Define the following terms:(i) cryoscopic constant(Kf) (ii) Molal elevation constant (𝑲𝒃) (b) A solution containing 15 g urea (molar mass = 60 g 𝐦𝐨𝐥−𝟏) per lit-re of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g 𝐦𝐨𝐥−𝟏) in water. Calculate the mass of glucose present in one litre of its solution. (c) What type of deviation is shown by a mixture of ethanol and acetone? Give reason. (b) A solution of glucose (molar mass = 180 g 𝒎𝒐𝒍−𝟏)in water is labelled as 10% (by mass). What would be the molality and molarity of the solution? (Density of solution =1.2𝒎𝑳−𝟏)

Chemical KINETIS 1.Read chapter “chemical kinetics” and make a project on chemical kinetics including following topics “order of reaction

and molecularity of chemical reaction” ,”effect of temperature on rate of reaction” , collision theory” . it should contain

atleast 10 pages.

P.H.E. HOLIDAY HOME WORK CLASS XII 11) Make a sports file of current event of May /june2017?



14) Write the history, rules ,skill and technique of your choice game sports practical file ?


Biology SUMMER VACATION HOME WORK (2017-18) BIOLOGY (CLASS –XII) KVJ

1) Read and learn the question answers of chapter 1 to 3 of your NCERT Biology Book.

2) Write NCERT question answers of chapter 1 to 3.

3) Write 20 questions and answers each from chapter 1 to 3 other than listed in question list of chapters.

4) Select a biology investigatory project from your practical notebook or from your local residence site, work on it

and show it after summer vacation for any modification or improvement. You can take the help of internet.

5) Check the previous year’s board question papers and solve the questions related with chapters 1 to 3.

WE Make any 2 new decorative charts using waste material.

Social Service.

Planting Trees around your house Keeping your residential surroundings clean by educating people around you.

Documents

Kendriya Vidyalaya Jhajjar(Haryana) · topic “ Role of youth in communal harmony “. 4. Write and practice advertisements – a) situation vacant b) To let c) Situation wanted