HOLIDAY HOMEWORK 2016-17 CLASS XI ACCOUNTS Part A

Make a Project on any one topic Following essentials are required to be fulfilled for its preparation and submission. 1. The total length of the project report will be 15 – 20 pages. 2. The project report will be hand written and credit will be awarded to original drawings, illustrations and creative use of materials. 3. The project report will be presented in a neatly bound simple folder. 4. The project report will be developed in this sequence. 

Cover page showing project title, student information, school and year



List of contents



Acknowledgements and preface (acknowledging the institution, offices and libraries visited and persons who have helped)



Introduction



Chapters with suitable headings.



Planning and activities to be done during the project, if any.



Conclusions (summary and suggestions or findings, future scope of study)



Bibliography

List of suggested Projects for class XI (Do any one ) Project Work (10 Marks) Any One: 1. Collection of Source Documents,Preparation of Vouchers, Recording of Transactions with the help of vouchers. 2. Preparation of Bank Reconciliation Statement with the given cash book and the pass book with twenty to twenty-five transactions. 3. Comprehensive project starting with journal entries regarding any sole proprietorship business, posting them to the ledger and preparation of Trial balance.The students will then prepare Trading and

Profit and Loss Account on the basis of the prepared trial balance. Expenses, incomes and profit (loss) are to be depicted using pie chart / bar diagram

PART –B

Question Bank A. VERY SHORT ANSWER QUESTIONS: (1mark each) 1. write any two examples of non_ current liabilities. 2. what are Accounting Standards. 3.write any two examples of Revenue Reserve. 4. what do you mean by Voucher. 5.state one limitation of historical cost. 6.state one objective of accounting. 7.Name any two users of accounting information. 8. Give two examples of intangible fixed assets . 9. state one difference between journal and ledger 10. what is error of commission B. SHORT ANSWER QUESTIONS: (3 marks each)

11. Explain briefly the accounting cycle . 12. Give any three difference between cash basis and accrual basis of accounting . 13. journalise the following transactions : a.) sold goods to Harsh for 50,000 at 20% trade discount and 5% cash discount. Harsh paid 40% immediately through a bankers cheque . b.) cash received from Ram on behalf of shyam 5000. 14. what is bill of exchange. Name the parties to bills of exchange and briefly describe each. 15. Differentiate between revenue expenditure and capital expenditure. 16. Define trial balance . why it is necessary to prepare. 17. state three limitations of accounting. 18. differentiate between book keeping and accounting

C. LONG ANSWER QUESTIONS: (6 marks each) 26 Explain the principles of accounting. 27. pass the necessary journal Entries to rectify the following errors . i) typewriter purchased for 8500 has been wrongly passed through the purchased book. ii) 1500 received from Soham lal has Been credited to sona A/c iii) credit sales to nihal of 6000 were posted to the credit of his account. iv) depreciation provide on furniture 400 was not recorded in the book .

28. Prepare Cash book with cash & discount columns of Raman

2015

Amount

Jan.1

Cash Balance

9500

Jan.3 Jan5.

Sold goods for 40,000 to Ram for cash less 2% cash discount.

4000

Jan. 7

Bought goods

6700

Received cash from Sunil

300

Jan.10. And discount allowed Paid to Ram store Jan.12

4800 200

And discount received

Jan 15. Bought goods from Mohan for 6000 for cash less 2% cash discount. Jan 18 3000 Bought furniture. Jan 21 Paid wages 2000 and Rent 1000 Jan 25 4900 Received cash from Gopal after deducting 2%cash discount Received interest 200 & commission 300 Q.29 Prepare a Sales Book of Navketan Furniture House:2011 May 1

Sold goods to Five Star Furniture co. New Delhi on credit 150 Chairs @ 200 each 40 Tables @ 600 ech Trade discount 10% .

May 15

Sold goods to Vishal furniture house, Faridabad 10 Almirahs @ 2000 each 5 sofa sets @ 3000 each Trade discount 15%

May 20

Sold goods to Parkash furniture house, chandigarh 100 chairs @ 180 each Less : 5% trade discount

May 25

Sold to Moonlight furniture co. For Cash :50 chairs @ 175 each

May 28

Sold on credit to sunil machinery store:2 old Machineries @ 500 per Machine 1 old typewriter for rs. 1200

Q: 30 The following Trial Balance has been prepared by an inexperienced accountant . Redraft it in a correct form: Name of Accounts

L.F.

Balance Dr.

Cash in Hand

4100

Machinery

25000

Purchases

66200

Sundry Debtors

24300

Carriage Inward

1800

Carriage Outward

Balance Cr.

700

Wages

17500

Rent and Taxes

5300

Sundry Creditors

17000

Discount Allowed

1200

Returns Outwards

2400

Returns Inwards Capital

9600 30,000

Drawings

6300

Bank Loan

10,000

Interest on Loan

1500

Opening Stock

26200

Sales

128700

Discount Received

1600 1,89,700

1,89,700

Total Q:31 On jan 1 2006 , Shankar purchased goods from Parvati for rs. 8000 and immediately drew a promissory note in favour of Parvati payable after 3 months. On the date of maturity of the promisory note , the Govt of India declared holiday undar the negotiable Instrument Act 1881. Since Parvati was unaware about the provision of law regarding the date of the maturity of the bill to her lawer, who duly presented the bill and receive the payment. The amount of the bill was handed over by the lawyer to Parwati immediately . Record the necessary journal entries in the books of Parvati and Shankar. Q: 32 What is meant by Accounting? Explain its Advantages and Limitations? 6.

Q: 33 On I jan 2006 A ltd purchased a Machine for rs. 2,40,000 and spent 10,000 on its erection On 1st july 2006 an additional machinery costing rs. 1,00,000 was purchased. On 1 st july 2008 the machine purchased on 1st January 2006 wsa sold for rs. 1,43,000 and on the same date , a new machine was purchased at a cost of rs. 2,00,000 Show the machinery Account for the first three Calendar years after charging depreciation at 5% by the Straight Line Method. 8.

Or Pass necessary journal entries of the following: 1. Bought goods from Mohan of the List price rs. 10,000 at 15% trade discount. 2. Settled the account of Mohan by paying cash, under a discount of 4%. 3. Bought goods for cash of the List price of rs. 50,000 at 20% trade discount and 5% Cash discount. 4. Sold goods for cash of the List Price of 20,000 at 10% trade discount and 3% cash discount. Q 34. From the following trial Balance of Ram Kumar , you are required to Prepare Trading & Profit & Loss A/c for the year ended on 31st March , 2013 and a Balance sheet as at that date: 8. Name of Accounts

Dr.

Capital

Cr. 50,000

Drawings

10,000

Debtors & Creditors

24,000

6% Loan

16,000 10,000

Interest on Loan

300

Cash

3,000

Provision for Bad Debts

1000

Wages

6,000

Stock on 1.4.2012

16,700

Computer

10,000

Bank

7,500

Furniture

20,000

Carriage Outward

4500

Carriage Inward

5000

Salaries

12,000

Rent

8,000

Bad Debts

600

Purchase and Sales

60,000

1,16,000

Returns

2000

1000

Advertising

4500

Discount

2,600

Insurance Premium

2,000

B/R & B/P

10,000

Commission

8,000 1,500

Total

2,06,100

2,06,100

Adjustments: (1) Depreciate furniture by 15% and Computer by 10% (2) Salaries outstanding by 1200 (3) Insurance Premium is paid for the year ending 30th June, 2013 (4) Wages have been paid up to 30th June , 2013 (5) Provision for Bad Debts is to be maintained at 5% on debtors (6) Stock on 31st March , 2013 was valued at 19,400

Or What is Double- Entry System? Explain its principles and Advantages.

WORKSHEET PHYSICS 1)Define angle of contact. Name the liquid-solid surface for which angle of contact is acute and obtuse. 2)explain (i) surface tension and its physical meaning and its molecular theory. Define sphere of influence and molecular range. 3)(i)State and prove bernoulli’s theorem. (ii)state and explain equation of continuity for stream line flow. (iii) explain hydraulic brake 4)find the change in volume,which 1 meter cube of water will undergo when taken from the surface to bottom of sea 1 km deep. Given the elasticity of water is 20,000 atmosphere . 1 atmosphere=1.013*105 N/m2 5)to what depth must a rubber ball be taken in dep sea so that its volume is decreased by 0.1%. the bulk modulus of rubber is 9.8*108 N/m2 and density of sea water is 103 kg/m3 6)(i)explain interatomic and intermolecular forces with graphical method (ii)explain shear modulus OR modulus of rigidity 7)a spherical body contracts in volume by 0.1% when taken to 500m deep in the sea.find the modulus of material of the body. 8)the diameter of brass rod is 4.00mm. young’s modulus of brass is 9.2*1010 N/m2 (i) calculate stress and strain when it is stretched by 0.25% of its length (ii) what is the force exerted 9) 0.1m3 mercury at 10 degree celsius is heated to 30 degree celsius . calculate the increase in volume of the mercury. Given gamma=1.8*10-4 Celsius. 10) explain (i) specific heat capacity (ii) why cp>cv (iii) define change of state of substance, draw a graph showing the variation of temperature with time,when ice at 0.c is heated to convert into steam at 100.c

11)state and explain kepler’s laws of planetary motion (ii) deduce newton’s law of gravitation from kepler’s law 12) define orbital velocity of satellite. Derive an expression for it and what will happen when orbital velocity close to orbit of a planet. And also derive an expression for escape velocity. 13) if the radius of the earth were increased by a factor of 3, by what factor would its density have to be changed to keep ‘g’ the same. 14)(i)physical significance of torque Define moment of inertia of a body and its physical significance. 15) derive an expression for k.e. of rotation of a body. 16) theorems of moment of inertia: for perpendicular and for parallel axis 17)calculation of moment of inertia (i) for bar (ii)for uniform circular disc about an axis through its center of mass and perpendicular to its plane 18) A 40 kg fly wheel In form of a uniform circular disc of 1m radius makes 120/pi rpm .calculate its angular momentum 19) differentiate translation motion and rotational motion. 20) Application of thermal conduction.

ENGLISH. 1)Making of Portfolio 2)Five Worksheets on note making and unseen passage each 3)Two topics each on Notice, Advertisement, Speech, Report and Article 5) Short notes on novel “ The canterville Ghost 6) Working Models on English on the topics a)noun b) Suffixes and prefixes c) One word definition d) Synonyms and Antonyms e) Jumble words f)Preposition g) Conjunctions h)Pronouns i)Active passive j) Narrations

k)Tenses l)Idioms m) Homophones n) Spelling check Make you models in such a way that the topic of your choice should be carrying at least 4 options. Use an electronic device to depict the correct option such as bulb,indicator, siren or Musical sound.

BUSINESS STUDIES Part A Make a Project on any one topic Following essentials are required to be fulfilled for its preparation and submission. 1. The total length of the project report will be 15 – 20 pages. 2. The project report will be hand written and credit will be awarded to original drawings, illustrations and creative use of materials. 3. The project report will be presented in a neatly bound simple folder. 4. The project report will be developed in this sequence. student information, school and year

persons who have helped)

ies to be done during the project, if any.

List of suggested Projects for class XI (Do any one ) 1. Types of Retailer in India 2. E-Banking Services of Banks 3. Stock Exchange Market 4. Modes of Communication

5. E-Commerce 6. LIC and Different types of Insurance 7. Import /Export Procedure 2 Teacher’s Signature 8. Aids to trade 9. Forms of business organizations 10. Private and Public sector enterprises Part B Question Bank I Answer in one sentence. (Each question carries ONE Mark) 1. Define business. 2. List the type of economic activities. 3. Is mining a genetic Industry or an extractive industry? Support your answer with reason. 4. Which industry provides support services to other industries? 5. What is the reward for taking risk in business? 6. Name the economic activity in which specialized knowledge is required. 7. Name the service which helps in removing hindrance of knowledge, time. 8. Define unlimited liability. 9. What is MNC ? Give ex.? 10. What is franchising? Give ex.? I Answer in 50-75 words. (Each question carries THREE Marks) 1. Explain the role of profit in business. 2. How would you classify business activities? 3. What is meant by trade? Explain the various types of trade. 4. Why is business considered as an economic activity? 5. Distinguish between economic and non-economic activities. Give examples. 6. Difference between Mitakshara and Dayabhag.

7. Difference between Partnership and company. 8. What are the factors to be kept in mind while selecting forms of business organisation? 9. Explain the process of GDR. 10. Difference between share and debenture. III Answer in around 150 words (Each question carries FOUR marks) 1. Describe the activities relating to commerce`. 2. Compare business with profession and employment. 3. “Business activity is different from the other activities of the society”. In light of this statement, explain the characteristics of business. 4. Explain the term industry and discuss various types of industries. 5. Explain the nature of business risk. 6. Explain the services of wholesalers towards retailers. 7. Explain any 4 principles of insurance. 3 Teacher’s Signature IV Answer in around 200 words. (Each question carries SIX Marks) 1. “No business is risk free”. In the light of this statement , explain the concept of business risk and its causes. 2. Why should a business have multiple objectives? Briefly explain any five objectives. 3. “One man control is the best in the world if that man is big enough to manage everything”. Explain the statement. 4. What are banks? Explain its types in detail. 5. What is import trade? Explain its procedure. 6. What is internal trade? Explain its types. 7. Explain the role of WTO in following:a) TRIP b) TRIM c) dispute settlement 8. What is MOA? Explain its clauses.

Economics PART A Make a Project on any one topic Following essentials are required to be fulfilled for its preparation and submission. 1. The total length of the project report will be 15 – 20 pages. 2. The project report will be hand written and credit will be awarded to original drawings, illustrations and creative use of materials. 3. The project report will be presented in a neatly bound simple folder. 4. The project report will be developed in this sequence.

(acknowledging the institution, offices and libraries visited and persons who have helped)

dings, future scope of study)

List of suggested Projects for class XI (Do any one ) 1. A report on demographic structure of your neighbourhood.

2. Changing consumer awareness amongst households. 2 Teacher’s Signature 3. Study of a Cooperative Institution : milk cooperatives, marketing cooperatives etc. 4. Case studies on public private partnership, outsourcing and outward FDI 5. Global warming 6. Designing eco-friendly projects applicable in school such as paper and water recycle. 7. Changing prices of a few vegetables in market (mother diary and local market). 8. The demand of consumer durables comparing various brands available. 9. Consumer’s preference of newspapers. PART –B Question Bank A. VERY SHORT ANSWER QUESTIONS: (1mark each) 1. Define quantitative data. 2. Define economics. 3. Define Statistical tools. 4. Define Statistics in Singular sense. 5. Define data. 6. Define direct personal investigation. 7. Define indirect oral investigation. 8. Define Second hand data. 9. Define enumerator. 10. Define investigator 11. What is stagnant economy? 12. Define economic planning. 13. What is human capital formation. 14. Define sustainable development. 15. Difference between questionnaire and schedule B. SHORT ANSWER QUESTIONS: (3 marks each)

16 . Distinguish between census method and sample method. 17. Distinguish between primary data and secondary data. 18. “Statistics is always concerned with mass phenomena and never with a single observation”. Comment. 19. Distinguish between population and sample. 20. Distinguish between direct personal investigation and indirect oral investigation. 21. Explain the types of rural credit. 22. Difference between commercial and non commercial sources of energy. 23. Explain the importance of environment. 24. What is inflation? Explain its types. 25. Who is worker? Explain its types? C. LONG ANSWER QUESTIONS: (6 marks each) 3 Teacher’s Signature 26. What are primary data? Enumerate the various methods of collecting primary data. Discuss the merits and demerits of any one of them. 27. Define Statistics? Explain the role of Statistics in Economics? 28. Explain the main limitations of statistics. 29. What are secondary data? Discuss the various sources of collecting secondary data? 30. What is Sampling? Explain its methods? 31. What is unemployment? Explain its types. 32. What is liberalization? Explain its reforms. 33. What is environment? Explain its problems. 34. Explain the policies taken by govt. to solve inflation in economy. 35. Calculate the Mean & Median from the following data : Marks 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students 5 5 5 20 10 5

36. Calculate Mode from the following data. Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students 2 5 8 10 8 5 2 37. Construct Price Index Number using i) Laspeyre’s Method ii) Paasche’s Method iii) Fisher’s Method Items Base Year Current Year Quantity Price Quantity Price A3528 B7456 C 4 7 3 10 D6657 38. Calculate Arithmetic mean from the following data using step- deviation method:Size 20-29 30-39 40-49 50-59 60-69 Frequency 10 8 6 4 2 39. Calculate median of the following data. Marks : 11-15 16-20 21-25 26-30 31-35 36-40 41-45 46-50 No. of Students: 7 10 13 26 35 22 11 5 40. Calculate mode from the following data ( use grouping method ) : Marks: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students : 2 5 8 10 8 5 2

Biology Worksheet1 Chapter-Circulatory system What is the circulatory system? The body's breathing system The body's system of nerves The body's food-processing system The body's blood-transporting system

From what source do cells get their food? Blood Oxygen Other cells Carbon dioxide Why is oxygen important to blood and to the cells? Oxygen helps the blood to clot. Oxygen brings food to the cells. Oxygen is necessary for cell growth and energy. Oxygen is not important important substance to the body.

--

carbon

dioxide

Which type of blood vessels carries blood away from the heart? Veins Arteries

is

the

most

Capillaries Arteries, veins and capillaries

Why is blood that flows from the lungs to the heart bright red rather than dark red? Oxygen makes it red. Carbon dioxide makes it red. Gastric juices produce the red colour of the blood. The lungs through them.

add

a

pigment

(dye)

to

blood

as

it

flows

What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells? Plasma Platelets Red corpuscles White corpuscles

What is the main job of the red corpuscles in the blood? To clot blood To fight disease To transport oxygen to and carry away carbon dioxide from the cells To transport carbon dioxide carry away oxygen from the cells

to

the

the

Which of the following can best be compared to soldiers? Lungs Capillaries

body's

body's

cells

cells

and

Red blood cells White blood cells Which element in the blood is round and colourless? Plasma Platelets Red blood cells White blood cells What would happen to people who have an open wound and whose blood did not clot naturally? They may bleed to death. Nothing. Clotting is not important. They would have to take regular doses of plasma. They would have to take regular doses of platelets. What happens when a clot occurred in an undamaged blood vessel? You would bleed to death. A scab will form on the skin surface. Platelets stick forming a plug.

to

the

edges

of

the

cut

and

to

one

another,

The flow of blood to tissues beyond the clot may be cut off.

What happens to blood when it is pumped into the thin-walled blood vessels of the lungs? Platelets are exchanged for plasma. Carbon dioxide is replaced with oxygen. Blood fills the lungs and causes coughing. Nothing -- the lungs are on its way back to the heart.

just

a

place

blood

goes

through

What is the function of the blood vessels and capillaries? They pump blood to the heart. They filter impurities from the blood. They carry blood to all parts of the body. They carry messages from the brain to the muscles.

Why does blood turn dark red as it circulates through the body? It starts to clot. It gets old and dirty flowing through the body. The oxygen in it is replaced with carbon dioxide. The farther blood is from the heart, the more dark red it is.

How many major types of blood have scientists discovered? One: Type "O" Two: white cells and red cells Three: white cells, red cells, and plasma Four: Types A, B, AB, and O

What is the organ that pumps blood all throughout the human body? The lungs The heart The kidneys The blood vessels and capillaries

WORKSHET 2

1. What are the typical components of a closed circulatory system? 2. How does the heart pump blood? 3. What is the difference between systole and diastole? 4. What are arterial vessels, arteries and arterioles? 5. What are venous vessels, veins and venules? 6. What part of the vascular system carries out the exchange of gases and other substances between tissues? 7. Which contain more muscle tissue, arteries or veins? How different are the walls of these two types of blood vessels? 8. What are the valves of the venous system? What is their function? 9. How do the muscles of the legs and feet contribute to venous return? 10. Why can flying insects such as flies beat their wings at a great speed despite having an open circulatory system

Chapter- Movement and Locomotion. 1. Draw the diagram of a sarcomere of skeletal muscle showing different regions. 2. Describe the important steps in muscle contraction. 3.. Write true or false. If false change the statement so that it is true. (a) Actin is present in thin filament (b) H-zone of striated muscle fibre represents both thick and thin filaments. (c) Human skeleton has 206 bones (d) There are 11 pairs of ribs in man. (e) Sternum is present on the ventral side of the body. 4. Write the difference between: (a) Actin and Myosin (b) Red and White muscles (c) Pectoral and Pelvic girdle 5. Name the type of joint between the following:(a) atlas/axis (b) carpal/metacarpal of thumb

(c) between phalanges (d) femur/acetabulum (e) between cranial bones (f) between pubic bones in the pelvic girdle

Worksheet Chemistry Chapter-Environmental Chemistry. ENVIRONMENTAL CHEMISTRY

Q1. What do you mean by environmental pollution? Give e.g. of degradable & non-degradable pollutants. Q2. Explain tropospheric pollution. Q3. Name the different regions of the atmosphere along with their altitude. Q4. State reason why CO acts as a pollutant, although it is colorless & odorless gas? Q5. Although CO2 is non-toxic, it is causing major environmental problem. Comment. Q6. Write a short notes on :- a) Global warming (b) Green House effect (c) Depletion of ozone layer. Q7. Why does rain water have normally a pH 5.6? When does it become acid rain? Q8. Write a note explaining acid rain? Q9. What are particulate pollutants? Explain the viable & non-viable particulates? Q10. What is smog? Explain the types of smog. Q11. Write down the reactions involved during the formation of photochemical smog? Q12. What are the harmful effects of photochemical smog & how can they can be controlled? Q13. What chemical reactions are occurring in the stratosphere? How are Freons creating a hole in the ozone layer? Q14. What do you understand by ozone hole? What does it occur mainly over Antarctica? Q15. Write the main effects of depletion of ozone layer? Q16. What is ground water pollution? How does it take place?

Q17. What are oxygen demanding wastes? Define BOD. How is it determined? Q18. What are the harmful effects of the following, if they are present in drinking water;(a) Fluoride (b) Lead (c) Sulphate (d) Nitrate Q19. What are the different sources of soil pollution? Name the pollutants being added by them. Q20. What are the international standards for drinking water? Q21. What are industrial wastes? Explain them in terms of biodegradable & nonbiodegradable wastes? Q22. Explain the strategy that has been adopted to control environmental pollution? Q23. How should the management of domestic waste be done? Q24. Comment on the statement – Green Chemistry is an alternative tool for reducing pollution? Q25. Give some examples of the achievements of green chemistry.

Hydrocarbons:MCQs: Question 1

Among the following compounds the one that is most reactive towards electrophilic nitration is

A

Toluene

B

Benzene

C

Benzoic Acid

D

Nitrobenzene

Question 2

Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide?

A

Tertiary butyl chloride

B

Neopentane

C

Isohexane

D

Neohexane

Question 3

Ethyl benzene CANNOT be prepared by ______.

A

Clemmensen reduction

B

Wurtz reaction

C

Wurtz-Fittig reaction

D

Friedel-Crafts reaction

Question 4

Identify B and D is the following sequence of reactions .

A

Ethanol and alcoholic KOH

B

Methanol and bromoethane

C

Ethyl hydrogen sulphate and alcoholic KOH

D

Ethyl hydrogen sulphate and aqueous KOH

Question 5

Ozonolysis of an organic compound 'A' produces acetone and propionaldehyde in equimolar mixture. Identify 'A' from the following compounds

A B C D

1 – Pentene

2 - Methyl - 1 – pentene

2 - Methyl - 2 – pentene

2 – Pentene

Question 6

Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of

A

A vinyl group

B

Two ethylenic double bonds

C

An acetylenic triple bond

D

An isopropyl group

Question 7

The non-aromatic compound among the following is

A

Option (A)

B

Option (B)

C

Option (C)

D

Option (D)

Question 8

A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is ______.

A

2, 2-dibromobutane

B

1, 1-dibromopropane

C

1, 4-dibromobutane

D

1, 2-dibromoethane

Question 9

Which one of these is NOT TRUE for benzene?

A

Heat of hydrogenation of benzene is less than the theoretical value

B

There are three carbon-carbon single bonds and three carbon-carbon double bonds

C

It forms only one type of monosubstituted product

D

The bond angle between carbon-carbon bonds is 120°

Question 10

The synthesis of 3-octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are

A

BrCH2CH2CH2CH2CH3 and CH3CH2C ≡ CH

BrCH2CH2CH3 and CH3CH2CH2C ≡ CH

B BrCH CH CH CH CH and CH C ≡ CH C BrCH CH CH CH and CH CH C ≡ CH D 2

2

2

2

2

2

2

3

3

3

3

2

Question 11

One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is

A

Ethane

B

Propene

C

1-butene

D

2-butene

Question 12

n-propyl bromide on treating with alcoholic KOH produces

A

Propyne

B

Propene

C

Propane

D

Propanol

Question 13

The angle strain in cyclobutane is

A B

24°44′

29°16′

19°22′

C 9°44′ D

Question 14

The overlapping of orbitals in benzene is of the type

A B C D

sp – sp

p–p

sp2 – sp2

sp3 – sp3

Question 15

In the following sequence of reactions, the alkene affords the compound 'B'

CH3 CH = CHCH3 The compound B is

A

CH3CH2CHO

CH3COCH3

B CH CH COCH C CH CHO D 3

3

2

3

Mathematics Assignment 1 SECTION A 𝑥

10

1. Find the middle term (3 + 9𝑦)

2. Write the set A = {1/2,2/3,3/4,4/5,5/6} in the set-builder form 3. Describe the sample space when a die is thrown two times. 𝑛 4. Write first five terms if 𝑎𝑛 = 𝑛+1 . SECTION B 5. Find the equation of the line passing through the point (-4,3) with slope

1 2

6.

Solve the inequality -3 ≤3 - 2x < 9, x R, and represent the solution set on the number line.

10.

If the line through the points (-2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24), find the value of x.

7. Solve 2𝑥 2 + 𝑥 + 1=0. 8. Reduce into intercept form and find intercepts on axes. 3𝑥 + 2𝑦 − 15 = 0 . 9. Find the derivatives of 𝑥 2 − 2 at 𝑥 = 10.

3𝑖

11. Express (5𝑖) ( 5 ) in 𝑎 + 𝑖𝑏 form .

12. Find focus and length of latus rectum 𝑦 2 = 12 𝑥 SECTION C 𝑢 𝑣 3 13. 𝐼𝑓 (𝑥 + 𝑖𝑦) = 𝑢 + 𝑖𝑣 𝑡ℎ𝑒𝑛 𝑠ℎ𝑜𝑤 𝑡ℎ𝑎𝑡 𝑥 + 𝑦 = 4(𝑥 2 − 𝑦 2 ). 14. In how many ways, can the letters of the word 'HONESTY' be arranged? Do you like jumbled letters of word 'HONESTY'? Why honesty is acquired in your life? 15.

Three numbers in GP whose sum is 13 and the sum of whose squares is 91. Find the numbers.

OR Find the coefficient of 𝑥 𝑦 𝑖𝑛 𝑡ℎ𝑒 expansion of (𝑥 + 2𝑦)9 . sin 𝑎𝑥 16. E valuate 𝑥 𝑙𝑖𝑚 →0 sin 𝑏𝑥 . 6 3

17. Find the angles between the lines 𝑦 − √3 𝑥 − 5 = 0 𝑎𝑛𝑑 √3 𝑦 − 𝑥 + 6 = 0 . OR Find the distance of the point (3,-5) from the line 3𝑥 − 4𝑦 − 26 = 0 . 18.

Solve the following simultaneous linear inequations graphically x +2y ≤10, x + y < 6 , x ≤ 4 , x ≥ 0 a n d y ≥ 0 .

19.

Find the value of other five trigonometric functions if cos x =

−1 2

and x lies in the third quadrant.

20.

Represent Z = 1 + 𝑖 √3 in polar form.

21. If X and Y are two sets such that X U Y has 50 elements. X has 28 elements and Y has 32 elements , how many elements does X∩Y have ? 22. Solve the following system of inequality graphically .5𝑥 + 4𝑦 ≤ 40 , 𝑥 ≥ 2 , 𝑦 ≥ 3 . 23. The ratio of the sum of m and n terms of an AP is

m 2 : n 2 . Show

that the ratio of the

mth and nth term is (2m -1):(2n - 1 ) or The interior angles of a polygon are in AP. The smallest angle is 120° and the common difference is 5°. Find the number of sides of polygon.

SECTION D Using the principle of mathematical induction, prove that

24.

1.2 3 +2 . 3 . 4 +3. 4 5 + +n(n +1)(n +2) = (

n (n+1)(n +2)(n +3)

) for all n

4

OR 1.3 + 3.5 + 5.7 + .........................+ (2n-1) (2n + 1) =

E N.

𝑛(4𝑛2+6𝑛−1) 3

25. Four persons are to be chosen at random from a group of 3 men, 2 women and 4 children. Find the probability of selecting (i) 1 man, 1 woman and 2 children. (ii) exactly 2 children. (iii) 2 women. or Out of 100 students, two sections of 40 and 60 students are formed, if you and your friends are among the 100 students. at is the probability that (i)

you both enter the same section?

(ii) you both enter the different section?

26.

27.

Find mean and standard deviation Marks

20-30 30-40 40-50 50-60 60-70 70-80 80-90

Number of students

3

6

13

15

14

5

4

28.

Find the equation of the line passing through (-3,5) and perpendicular to theline through the points (2,5) and (3,-6). Find the sum to n terms of the series : 5 + 11 + 19 + 29 + 41 + ............

29.

Prove that tan 4x =

4 tan 𝑥 ( 1−𝑡𝑎𝑛2 𝑥 ) 1−6 𝑡𝑎𝑛2𝑥 + 𝑡𝑎𝑛4 𝑥

ASSIGNMENT 2. SECTION : A Q.1. Write the set A = { x | 4x-5< 29, x € N} in the Roster form ?

Q.2. Find the value of Sin 31 π / 3? Q.3. Q.4. Q.5.

Find the multiplicative inverse of √5 + 3¡ ? Find the equation of the line parallel to the 3x-4y+2 = 0 and passing through the point (-2,3)? Three coins are tossed once. Find the probability of getting exactly two tails?

Q.6.

If p(A) = .54, p(B) = .69 & p(AB) = .35 find p(A´ B´ ) ?

Q.7.

Find r if 5 × (4 P r ) = 6 × (5P r-1 ).

Q.8.

Find the middle terms in the expansion of (x/3 + 9y) 10.

Q.9.

Find the value of x for which the points (x,-1) (2,1) and (4,5) are collinear.

Q. 10. In a single throw of two dice find the probability of getting a total of 8 on the face of dice.

SECTION : B Q.11. If U = { 1,2,3,4,5,6,7,8,9}, A= {2,4,6,8}, B = {2,3,5,7} Verify that (i) (A UB) = A´ ∩B´ (ii) (A ∩B)’ = A´ U B´ Q.12. Let A = {1,2,3 14} Define a relation R from A to A by R = {(x,y) : 3x- y =0, where x,y € A}. Write down its domain, co domain and range. Or Let f and g are two real valued functions defined respectively by f(x)= 2x+1, g(x)= x2 – 5 , find (f+g)x , (fg)x, (fg)x and (f/g)x. Q. 13.Find the general solution for the equation Sec 2 2x = 1 – Tan 2x. Q. 14. A committee of 7 has to be formed from 9 boys and 4 girls. In how many ways can this be done when the committee consists of (a) exactly 3 girls (b) at least 3 girls (c) utmost 3 girls. Q.15. Find the equation of the set of points P such that its distances from the points A (3,4,-5) and B (-2,1,4) are equal. Q.1 6. By using the principal of mathematical induction for all n € N. 12 + 3 2 + 5 2 + …….. (2n-1)2 = n(n-1) (2n+1)/3. Q. 17. If (x+ iy )3 = u + iv, then show that u/x + v/y = 4(x 2 – y2) Q.1 8. In how many ways can the letter of the word P E R M U TA TIONS be arranged if the (i) Words start with P and end with S. (ii ) Vowels are all together. (iii) There are always 4 letter between P and S. Q.1 9. Write the contra- positive and converse of the following statements . (i) If x is a prime number, then x is odd. (ii) If a triangle is equilateral , it is isosceles. Q.20. Find the derivative of following function :

(i) y = x / sin n x

(ii) y = (ax2 + sin x) (p+qcosx) Or Find the derivative of f(x)= xsin x from the first principle. Q.21. Find the equation of the circle passing through the points (4,1) and (6,5) and whose centre is on the line 4x+y= 16. Q.22. Prove that the coefficient of x n in the expansion of (1+x)2n is twice the coefficient of x n in the expansion of (1+ x)2n-1.

SECTION : C Q.23. In a survey of 60 people it was found that 25 people read newspaper H, 26 read newspaper T, 26 read newspaper I, 9 read both H and I, 11 read both T and I, 3 read all three newspaper. Find The number of people who read at least one of the newspaper. The number of people who read exactly one news paper. The number of people who do not read any newspaper. Q.24.. Find the coordinate of the foci, the vertices and lenth of major axis, the eccentricity and the length of the latus rectum of the ellipse: X2 + Y2 = 1 100 400 Q.25.

Sin 8A.CosA- Cos 3A.Sin 6A/ = Tan 2A Cos 2A.Cos A- Sin A. Sin 4A

Q.26. If a and b are roots x2-3x+p=0 and c, d are that roots of x2 –12x+q=0, where a, b,c,d form G.P. Prove that (q+p) : (q-p)= 17:15 Q.27.

Graphically solve the following system of linear equations, 3x+ y ≤66,000, x+y ≤45,000, X ≤20,000, y≤ 40,000 and x≥ 0, y ≥0 Q. 28 Find the image of the point(3,8) w.r.t the line x + 3y =7 assuming, the line to be a plane mirror.

Q.29 Calculate Mean, Variance and Standard deviation for the following distribution. CLASSES 20-30 40-50 50-60 60-70 70-80 80-90 FREQUENCY

3

7

12

15

8

3

90-100 2