Regd No:

Total No. of Questions -21

Total No. of printed Pages -2

CHEMISTRY, PAPER -II

(English Version)

Time : 3 Hours Max.Marks:60

Note : Read the following instructions carefully :

Answer all the questions of section A. Answer any Six questions of section B and any Two

questions from section C

1. In section -A questions from sr.no 1 to 10 are Very Short Answer type. Each question carries

2 marks. Every answer may be limited to two or three sentences. Answer all these questions

at one place in the same order.

2. In section - B, questions from sr.no 11 to 18 are Short Answer Type. Each question carries

four marks. Every answer may be limited to 75 words.

3. In section C, questions from sr.no 19 to 21 are of Long Answer Type. Each question carries

8 marks. Every answer may be limited to 300 words.

4. Draw labeled diagrams wherever necessary for questions in section B and Section C

SECTION -A

Note : Answer all the questions

1. Give the complete name for PHBV. How it is useful?

2. What is insulin?

3. What is Cholesterol?

4. What are artificial sweetening agents? Give one example.

5. What is Brownian movement?

6. What is emulsifying agent? Give one example.

7. Define anti-histamines. Give one example.

8. Give the composition and uses of Nichrome.

9. Define order of reaction

10. Write Hell Volhard Zelinsky reaction with equation.

I

SECTION – B

Note : Answer ANY SIX questions.

11. Explain Schottky and Frenkel defects in solids.

12. State and explain Raoult’s law.

13. State Faraday’s laws of Electrolysis.

14. How is bauxite purified by serpeck’s process?

15. Give balanced equations and principle involved in the manufacture of Nitric acid by Ostwald

process?

16. Calculate the EAN of the following central metals in their respective complexs

a) [Cu(NH3)4](OH)2 b) K4[Fe(CN)6]

17. Explain a) clemensen reduction b) williamson’s synthesis

18. Define Molality. How many grams of Na2CO3 should be dissolved in 250 grams of water to

prepare 0.1 m solution

SECTION – C

19. a) Give any three oxidation reactions of Ozone with chemical equations

b) How chlorine is prepared and write their chemical properties

20. Write the preparation method of Nitro-Benzene. Explain any three reduction properties of

Nitro-benzene with equations

21. a) State Kohlrausch’s law of independent migration of ions with example.

c) Calculate equivalent conductivity for CaCl2 and MgSO4 from the given data

Ca+2

= 119.0 s cm2 mol

-1, Cl

-= 76.3 s cm

2 mol

-1

Mg+2

= 106.0 s cm2 mol

-1, SO4

2-= 160.0 s cm

2 mol

-1

Regd No:

Total No. of Questions -21

Total No. of printed Pages -2

CHEMISTRY, PAPER -II

(English Version)

Time : 3 Hours Max.Marks:60

Note : Read the following instructions carefully :

Answer all the questions of section A.

Answer any six questions of section B and any two questions from section C

1. In section -A questions from sr.no 1 to 10 are Very Short Answer type. Each question carries

two marks. Every answer may be limited to two or three sentences. Answer all the questions

at one place in the same order.

2. In section - B, questions from sr.no 11 to 18 are Short Answer Type. Each question carries

four marks. Every answer may be limited to 75 words.

3. In section C, questions from sr.no 19 to 21 are of Long Answer Type. Each question carries 8

marks. Every answer may be limited to 300 words.

4. Draw labeled diagrams wherever necessary for questions in section B and Section C

SECTION -A

Note : Answer all the questions

1. Define order of reaction

2. Give the composition of Brass

3. What is PHBV? How is it useful to man?

4. Give the deficiency disease caused by A,D,E,K Vitamins.

5. Give two biological functions of lipds

6. What are antibiotics? Give two example

7. What are food preservatives? Give example

8. What is williamson’s synthesis? Give equation

9. Write HVZ reaction with equation.

10. The reactant ‘A’ is reduced to Azobenzene with LiAlH4. What is ‘A’? Give equation?

SECTION – B

II

II. Answer any SIX of the following questions

11. What is doping? What are n-type and p-type semiconductors?

12. Give Nernst equation. Calculate the electrode potential of the following single

electrode Cu++

(C=0.01 M)/Cu; (Eo = +0.337V)

13. What is emulsion? How are emulsions classified? Give examples

14. Write about a) roasting b) calcination

15. Draw Werner’s structures of the following

a) CoCl3.6NH3 b) CoCl3.5NH3 c) CoCl3.4NH3 d) CoCl3.3NH3

16. Give the reactions of ozone with the following and give equations

i. PbS ii. SnCl2/HCl iii) Moist KI iv) BaO2

17. How does ethyl alcohol react with the following? Write equations

i. Metallic Na ii. CH3COOH iii) CH3MgI iv) con H2SO4 at 170oc

18. Define molality. How many grams of Na2CO3 should be dissolved in 250 grams of

water to prepare 0.1 m solution

SECTION – C

III. Answer any Two of the following questions

19. A. Define rate of reaction. Explain the factors which influence rate of reaction

B. A current of 10 amp is passed through molten AlCl3 for 96.5 seconds. Calculate the

mass of Al deposited at cathode ( At.wt Al=27)

20. a. How is Cl2 obtained in laboratory? How does it react with a) cold dil NaOH b) KI

b. How is ozone prepared from oxygen? Explain its reactions

21. a. Explain sandmayer reaction carbylamines reaction

b. Explain cannizzaro reaction and decarboxylation

Regd No:

Total No. of Questions -21

Total No. of printed Pages -2

CHEMISTRY, PAPER -II

(English Version)

Time : 3 Hours Max.Marks:60

Note : Read the following instructions carefully :

Answer all the questions of section A.

Answer any Six questions of section B and any Two questions from section C

1. In section -A questions from sr.no 1 to 10 are Very Short Answer type. Each question carries

2 marks. Every answer may be limited to two or three sentences. Answer all these questions

at one place in the same order.

2. In section - B, questions from sr.no 11 to 18 are Short Answer Type. Each question carries

four marks. Every answer may be limited to 75 words.

3. In section C, questions from sr.no 19 to 21 are of Long Answer Type. Each question carries

Eight marks. Every answer may be limited to 300 words.

4. Draw labeled diagrams wherever necessary for questions in section B and Section C

SECTION -A

Note : Answer all the questions

1. State Raoult’s law.

2. Calculate the ‘Spin Only’ magnetic moment of Fe+2

ion?

3. How is change in gibs energy related to the e.m.f of a galavanic cell?

4. Give two examples for gaseous first order reactions?

5. Ammonia is a good complexing agent- with an example

6. What is tailing of mercury? How is it removed?

7. What is the difference between Buna-N and Buna-S?

8. What is Biodegradable polymer? Give one example of a biodegradable polyester?

9. What are enantiomers

10. How do you covert aniline to p-bromoaniline?

III

SECTION – B

11. Derive Bragg’s equation?

12. Define mole fraction. Calculate the mole fraction of sodium hydroxide in 10%(w/w) NaOH

solution

13. What is catalysis? How is catalysis classified? Give two examples for each type?

14. Explain the purification of sulphide ore by froth floatation method?

15. What are hormones? Give an example for each of the following

a. Steroid hormones b. Polypeptide hormones c. amino acid derivate

16. Write short notes on a. analgesics and b. food preservatives

17. Explain Werner’s theory of coordinate compounds with suitable examples?

18. Explain a. Aldol condensation b. coupling reactions

SECTION – C

19. A. State and explain Kohlrausch’s law of independent migration of ions?

B. What is rate equation? How is it obtained? Write rate equations for the following

i. 2 NO (g) + O2 (g) 2NO2 (g) ii. CHCl3 + Cl2 CCl4 + HCl

iii. CH3COOC2H5 + H2O CH3CHOOH + C2H5OH

20. A. What are inter-halogen compounds? Give some Examples to illustrate the definition how

they are classified?

B. Explain the shape of XeOF4 on the basis of VSEPR Theory?

21. A. Explain the acidic nature of phenols and compare it with that of alcohols?

B. Give the structures of A,B and C in the following reaction

C6 H5N2Cl ---------------- A ---------- --- B ------------ C