Holiday Home Work of Classes Xii Chemistry (2017-2018)

HOLIDAY HOME WORK OF CLASSES XII CHEMISTRY (2017-2018)

1: SOLVE FIVE YEARS CBSE BOARD QUESTIONS PAPER (2012 – 2016)

2 ALL INTEXT QUESTIONS FROM SOLID STATE TO D BLOCK ELEMENTS .

3 . ALL INTEXT QUESTIONS FROM HALOALKANES TO AMINES .

4 . COMPLETE THEIR PRACTICAL FILE FOR BOARD EXAMINATION.

5 . COMPLETE THEIR PROJECT ALOTED FOR PRACTICAL BOARD EXAMINATION 2017-18

CLASS XII

SUBJECT- CS

SOLVE SEVEN SAMPLE PAPERS OF CS OF CBSE ALONG WITH QUESTION PAPER OF PRE BOARD EXAMINATION.

PHYSICS

QUESTION BANK FOR STUDENTS OF ECONOMICS

SESSION 2017-18

Unit-I : Introduction to Micro Economics

Q1. PPC is a straight line in case of :

a)rising marginal opportunity cost

b)falling marginal opportunity cost

c)constant marginal opportunity cost

d)none of these

Q2. Concavity of PPC implies :

a)increasing slope

b)decreasing slope

c)constant slope

d)none of these

Q3. When an economy is operating on the PPC, it indicates :

(a)potential output > actual output

(b)potential output = actual output

(c)potential output < actual output

(d)none of these

Q4. Increase (growth) of resources implies that production possibility curve :

(a)shifts to the right

(b)shifts to the left

(c)rotates to the right

(d)none of these

Q5. Define economics. (1)

Q6. What is meant by an economic problem ? (1)

Q7. Give meaning of an economy . (1)

Q8. Define micro economics. (1)

Q9. Define macro economics. (1)

Q10. What are economic agents ? (1)

Q11. State the two characteristics of resources. (1)

Q12. Define opportunity cost . (1)

Q13. Why does an economic problem arise ? Explain . (3)

Q14. State two principal differences between micro economics and macro economics. (3)

Q15. Explain the problem of ‘What to produce’ . (3)

Q16. Explain the central problem of “How to produce” . (3)

Q17. With the help of suitable example, explain the problem of “for whom to produce” ? (3)

Q18. Why is a production possibility curve downward sloping ? Explain. (3)

Q19. Explain, giving reason , why production possibility curve is concave ? (3)

Q20. When can PPC be a straight line ? (3)

Q21. “Massive unemployment shifts the PPC to the left .” Defend or refute. (3)

Q22. “Make in India” campaign would shift the PPC to the right . How ? (3)

Q23. What is meant by production possibility curve ? Illustrate with the help of a table and diagram .

Q24. Explain the concept of marginal opportunity cost with the help of an example. (4)

Q25. Draw a production possibility curve and indicate the following situations on the diagram - (6)

Fuller and efficient utilization of resources

(a)Under utilization of resources and(b)Growth of resources

Unit-II:

Consumer’s Equilibrium and Demand

Q26. Marginal utility of a particular commodity at the point of saturation is :

(a)zero

(b)unity

(c)greater than unity

(d)less than unity

Q27. A shift in budget line , when prices are constant , is due to :

(a)change in demand

(b)change in income

(c)change in preferences

(d)change in utility

Q28. MRS is determined by :

(a)satisfaction level of the consumer

(b)income of the consumer

(c)tastes of the consumer

(d)preferences of the consumer

Q29. If two goods are complementary then rise in the price of one results in :

(a)rise in demand for the other

(b)fall in demand for the other

(c)rise in demand for both

(d)none of these

Q30. On all points of a rectangular hyperbola demand curve, elasticity of demand is :

(a)equal to unity

(b)zero

(c)greater than unity

(d)less than unity

Q31. In case of Giffen ‘s paradox, the slope of demand curve is :

(a)negative

(b)positive

(c)parallel to X-axis

(d)parallel to Y-axis

Q32. Define utility. (1)

Q33. What is meant by Consumer’s equilibrium ? (1)

Q34. What is law of diminishing marginal utility ? (1)

Q35. What is ordinal utility ? (1)

Q36. Define indifference map. (1)

Q37. What does an indifference curve show ? (1)

Q38. What is meant by monotonic preferences ? (1)

Q39. Name two determinants of consumer’s demand for a commodity. (1)

Q40. When is the demand for a good said to be inelastic ? (1)

Q41. When is demand called perfectly inelastic ? (1)

Q42. What is meant by price elasticity of demand ? (1)

Q43. Explain the relationship between TU and MU with the help of a diagram . (3)

Q44. Explain the three properties of indifference curves. (3)

Q45. What is budget set ? Explain what can lead to change in budget set ? (3)

Q46. Define a budget line. What can it shift to the right ? (3)

Q47. What is market demand for a good ? Name the factors determining market demand . (3)

Q48. Explain the difference between an inferior good and a normal good. (3)

Q49. A consumer spends Rs. 60 on a good priced at Rs. 5 per unit. When price falls by 20 percent , the consumer continues to spend Rs. 60 on the good. Calculate price elasticity of demand by percentage method. (3)

Q50. When the price of a good rises from Rs. 10 to Rs. 12 per unit, its demand falls from 25 units to 20 units. What can you say about price elasticity of demand of the good through the “expenditure approach” . (3)

Q51. Explain the concept of marginal rate of substitution with the help of a numerical example. (4)

Q52. Explain the distinction between “change in demand” and “change in quantity demanded”. (4)

Q53. Explain the change in demand for a good on account of change in prices of related goods. (4)

Q54. What happens to the demand for a good when consumer’s income changes ? Explain. (4)

Q55. How is price elasticity of demand measured with the help of the point method ? (4)

Q56. Explain the relation between price elasticity of demand and total expenditure. (4)

Q57. How is price elasticity of demand affected by – (4)

Number of substitutes available for the good.
Nature of the good

Q58. Explain the consumer’s equilibrium in case of a single commodity with the help of a utility schedule. (6)

Q59. A consumer consumes only two goods. Explain consumer’s equilibrium with the help of utility analysis. (6)

Q60. State the conditions of consumer’s equilibrium in the indifference curve analysis and explain the rationale behind these conditions. (6)

Unit-3:

PRODUCER BEHAVIOUR AND SUPPLY

ONE MARKS OUESTIONS:

Q1. Price elasticity of supply of a good if the supply curve passing through the origin is:-

(1) Equal to one (2) less than one

(3) More than one (4) zero

Q2. In the second phase of production:-

(1) TP increases at a decreasing rate(2) MP Falls

(3) AP Falls (4) All of these

Q3. The total cost at 5 units of output is Rs. 30. The fixed cost is Rs. 5. The average variable cost at 5 unit of output is

1) Rs. 25(2) Rs. 6

(3) Rs. 5(4) Rs. 1

Q4. Government decided to increase excise duty on the production of a given good. What will be its impact on the supply of a given good:-(1) Supply curve of rice will shift towards left

(2) Supply curve of rice will shift towards right

(3) Supply curve of rice will remain the same

(4) There will be downward movement along the supply curve of rice

Q5. Price line is the same as:-

(1) Budget line(2)firm’s demand curve

(3) Firm’s AR curve(4) both (b) and (c)

Q6. Point of Inflexion refers to that point from where:-

(1) Slope of TP changes

(2) TP stop increasing at an increasing rate

(3) TP is increasing at a constant rate

(4) TP is decreasing at a constant rate

Q7. When MP cuts AP at its highest point

(1) MP>AP(2) MP<AP

(3) MP=AP(4) All of these

Q8. In case of Break Even point a firm covers:

(1). Variable cost only(2) average variable cost only

(3) Both fixed cost and variable cost(4) none of these

Q9. Under Monopoly, MR can be negative only when

(1) AR is increasing(2) AR is decreasing

(3) AR is constant (4) AR is zero

Q10. Imposition of a unit tax shifts the supply curve:-

(1) To the right (2) To the left

(3) To the right as well as to the left (4) none of these

QUESTIONS OF 3 MARKS:

Q11.Draw Average total cost, average variable cost and marginal cost curves in a single diagram. Also explain the relationship between ATC and AVC?

Q12.A producer borrows money and opens a shop. The shop premises is owned by him. Identify the implicit and explicit cost by this information?

Q13. What is the relationship between marginal revenue and average revenue under perfect competition and monopoly?

Q14. Explain the significance of ‘Minus sign’ attached to the measure of price elasticity of Demand of a normal good in comparison to the ‘Plus sign ‘attached to the measure of price elasticity of supply ?

Q15. Define Average revenue? Show that average revenue and price are same?

Q16.Do you agree that TP must decrease in a situation of diminishing returns?

Q17.Complete the following table:

PRICE / OUTPUT UNITS / TOTAL REVENUE / MARGINAL REVENUE
------/ 1 / _____ / 5
4 / ----- / 8 / ____
------/ 3 / ______/ 1
2 / ----- / 8 / _____

QUESTIONS OF 4 MARKS

Q18. ‘Supply curve is the rising portion of marginal cost curve over and above the minimum of average variable cost curve’. Do you agree? Support your answer with valid reason.

Q19.Why is the short run marginal cost curve U shaped ?

Q20. What causes a downward movement along a supply curve of a commodity?

Q21. State the difference between Returns to a factor and returns to a scale?

Q22.Explain why will a producer not be in equilibrium if the conditions of equilibrium are not met?

Q23.From the following information about a firm, find the firm’s equilibrium output in terms of Marginal cost and Marginal revenue. Give reason. Also find profit at this output.

OUTPUT UNITS / TOTAL REVENUE / TOTAL COST
1 / 7 / 8
2 / 14 / 15
3 / 21 / 21
4 / 28 / 28
5 / 35 / 36

Q24. When the price of a good rises from Rs. 20 per unit to Rs. 30 per unit, the revenue of the firm producing this good rises from Rs. 100 to Rs. 300. Calculate the price elasticity of supply

QUESTIONS OF 6 MARKS

Q25.What is Producer’s equilibrium? Explain the conditions of producer’s equilibrium through the ‘marginal cost and marginal revenue’ approach. Use Diagram.

Q26. Explain the distinction between “Change in Quantity supplied” and “change in supply”. Use diagram.

Q27. State whether the following statements are true or false. Give reason for your answer:-

(a). When total revenue is constant, average revenue will also be constant

(b). Average variable cost can fall even when marginal cost is rising.

(c). when marginal product falls, average product will also fall.

Q28. From the following data on the cost of production of a firm calculate TFC, AFC, TVC, AVC and MC

OUTPUT(kg) / 0 / 1 / 2 / 3 / 4 / 5 / 6
TC (Rs) / 60 / 80 / 110 / 111 / 116 / 130 / 150

Q29. Explain with the help of a diagram the effect of the following on the supply of a Good:

(1) Imposition of a unit tax

(2) Increase in the number of firms

Q30.What does the Law of Variable Proportions show? State the behavior of marginal product according to this law?

Unit-IV

FORMS OF MARKET AND PRICE DETERMINATION UNDER PERFECT COMPETITION

ONE MARKS QUESTIONS

Q1. Under perfect competition, demand curve of a firm is …………………………..

(a) Positively sloped (b) negatively sloped

Q2. The average revenue curve under the perfectly competition market is parallel to the x-axis. It is so because…………………….

(a) There are many buyers & sellers in the market

(b) A perfectly competitive firm can sell any quantity at given price

(d) There is free entry in the market

Q3. At the market equilibrium, there is…………………

(a) No excess demand (b) no excess supply

Q4. An increase in income results in a higher equilibrium price and quantity when the good is………………..

(a) A normal good (b) an inferior good

Q5. If both supply and demand increases by the same proportion……………………….

(a) Price remains constant (b) quantity remains constant

Q6. If the influence of an individual seller on the market price is zero, the state of market is…………………..

(a) Perfect competition (b) monopoly

Q7. Which of the following will cause a fall in equilibrium price of good X, a normal good?

(a) Rise in income of its buyers(b) Rise in price of other goods in production

Q8. Which of the following is the effect of price ceiling?

(a). Hoarding (b) Black marketing

(c). Rationing (d) All of these

Q9. If demand curve of good shifts rightward and its supply curve shifts leftward, what will be the effect on the equilibrium quantity?

(a) Equilibrium quantity increases

(b) Equilibrium quantity decreases

(d) Equilibrium quantity may increase, decrease or remain unchanged

Q10. If in an oligopoly market, firms compete with each other in determining price and output, it is called

(a) Perfect oligopoly(b) Imperfect oligopoly

QUESTIONS OF 3 MARKS

Q11. Why is the demand curve of a firm under monopolistic competition more elastic than under monopoly? Explain

Q12. Firms demand curve is indeterminate under oligopoly?

Q13. Explain any two sources of restricted entry under monopoly?

Q14. Explain the concept of Buffer stock as a tool of price floor?

Q15. Explain three main features of Monopolistic competition?

Q16. Explain the implication of ‘Freedom of entry and exit to the firms’ under perfect competition?

Q17. Why is a firm under perfect competition a price taker?

QUESTIONS OF 4 MARKS

Q18. Explain ‘Black marketing as a direct consequence of price ceiling?

Q19. Monopoly firm can make abnormal profits in the long fun, but not a firm under monopolistic competition why?

Q20. Write your opinion on the formation of cartels in an oligopolistic market structure?

Q21. Explain the economic value of support price policy in India?

Q22. What is minimum price ceiling? Explain its implications.

Q23. Why a monopolistic firm has a partial control on the price of its goods? Why it does not have full control?

QUESTIONS OF 6 MARKS

Q24. Giving reasons state whether the following statements are true or false:

(a) A monopolist can sell any quantity he likes at a price

(b) When equilibrium price of a good is less than its market price, there will be competition among the sellers

Q25. Explain the implications of the following:

(a) Large numbers of buyers and sellers under perfect competition

(b) Interdependence of firms under oligopoly

Q26. Market for a good is in equilibrium. There is an ‘increase’ in demand for this good. Explain the chain of effects of this change. Use diagram

Q27. Equilibrium price of essential medicines is too high .Explain what possible steps can be taken to bring down the equilibrium price but only through market forces? Explain the chain of effect that will occur.

Q28. Distinguish between cooperative and non cooperative oligopoly. Also explain the implication of non price competition in an oligopoly market?

Q29. Explain the term market equilibrium. Explain the series of changes that will take place if market price is higher than the equilibrium price?

Q30.Suppose the demand and supply curves of a commodity-X are given by the following two equations simultaneously:

Qd =200- p

Qs =50+ 2p

(i) Find the equilibrium price and equilibrium quantity.

(ii) Suppose that the price of a factor of production producing the commodity has changed, resulting in the new supply curve given by the equation:

Qs= 80+2p

Analyze the new equilibrium price and new equilibrium quantity as against the original equilibrium price and equilibrium quantity.

Unit-V

NATIONAL INCOME AND RELATED AGGREGATES

Q1 to Q 8 carry ONE mark each :

Q1. What is the difference between Factor payment and Transfer payment ?

Q2. How do you distinguish between Old age pension and Retirement pension in the context of estimation of National Income ?

Q3. Define Mixed Income.

Q4. Define the Expenditure method of calculating National Income.

Q5. Give formula to measure : (1x10)

a)GDP & NDP

b)GDP at mp and GDP at fc

c)GDP & GNP

d)National Disposable Income.

e)Factor income from NDP accruing to private sector

f)Private income

g)Personal income

h)Personal Disposable income

i)Nominal & Real GDP

j)GDP Deflator

Q6. If NNP at fc = Rs.100 ; Depreciation= Rs10 ; Subsidy= Rs 5 ; Indirect tax= Rs 15. Find GNP at mp.

Q7. If GDP at fc Rs 24,760 ; Operating surplus=Rs.13,450 ; Mixed Income=Rs.4260 ; Consumption of Capital= Rs. 530. Find out Comensation of Employees.

Q8. Find out NDP at mp if GNP at fc= Rs.5000; Indirect tax=Rs.250; Subsidy= Rs.300; Depreciation= 600 and NFIA= -(200)

Q9 to Q 14 carry THREE marks each.

Q9. Comment on the concept of Green GNP.

Q10. Describe the components of NFIA.

Q11. Explain the problem of double counting citing an example.

Q12. What are the components of Compensation of Employees?

Q13. What are the components of Operating Surplus?

Q14. Calculate value added by Firm A and Firm B :

ITEMS Rs.(in crores)

a)Domestic sales by firm A 4000

b)Expenditure by firm A 1000

c)Purchase by firm A 200

d)Sales by firm B 2940

e)Purchase by firm B 1300

Q15 to Q 25 carry FOUR marks each :

Q15. Explain the concept of Normal Residents.

Q16. Explain the concept of Domestic Territory.

Q17. Comment on GDP as an index of Welfare.

Q18. Draw a Circular flow model in a two sector economy. What are the three phases of economic activity suggested by this model ?

Q19. Highlight the steps involved in the process of estimating National Income by Product method.

Q20. What are the two methods used for avoiding Double counting ?

Q21. What are the broad categories under which Final Expenditure is classified ?

Q22. What precautions must be taken in the calculation of national income while using Expenditure method ?

Q23. Calculate National Income :

Particulars Rs.(in crores)

a)Compensation of employees 13,300

b)Wages in kind 200

c)Indirect taxes 3,800

d)Gross domestic capital formation 6,200

e)Operating surplus 5,000

f)Mixed income of self employed 16,100

g)Net factor income from abroad 300

h)Net exports -(100)

Q24. Calculate GNP at fc :

Items Rs.(in crores)

a)Net domestic fixed capital formation 350

b)Closing stock 100

c)Government final consumption expenditure 200

d)Net indirect taxes 40

e)Opening stock 60

f)Consumption of fixed capital 50

g)Net exports -(10)

h)Private final consumption expenditure 1500

i)Imports 20

j)Net factor income from abroad -(30)

Q26 to Q 30 carry SIX marks each :

Q25. What are the various precautions to be taken while estimating national income by Value-Added method ?

Q26. What precautions should be taken while using Income method for the calculation of National Income ?

Q27. Calculate NDP at fc :

ITEMS Rs. (crores)

a)Net current transfers to abroad 05

b)Government final consumption expenditure 100

c)Net Indirect Taxes 80

d)Private final consumption expenditure 300

e)Consumption of fixed capital 20

f)Gross domestic fixed capital formation 50

g)Net exports -(10)

h)Change in stock 25

i)Operating surplus 25

j)Net factor income from abroad 10

Q28. How should the following be treated while estimating National Income : ( ½ x 12=06)

a)Expenditure on education of children by a family.

b)Imputed rent of self occupied houses.

c)Financial help received by flood victims.

d)Capital gain on sale of a house

e)Interest on public debt.

f)Interest received on debentures.

g)Value of bonus on shares received by shareholders of a company.

h)Dividend received by an Indian from his investment in shares of a foreign company.

i)Expenditure on fertilizers by a farmer.

j)Expenditure on adding a floor to a building.

k)Profits earned by an Indian bank from its branches abroad.

l)Interest received on loans given to a friend for purchasing a car.