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INTERMEDIAINTERMEDIATE PUBLIC EXAMINATE PUBLIC EXAMINATIONTIONSr. INTER CHEMISTRY MODEL PAPER (ENGLISH VERSION)

TIME: 3 HOURS MAX. MARKS: 60SECTION - A

Note: 1) Answer ALL questions.2) Each question carries TWO marks. 3) All are Very short answer type questions. 10 2 = 20

1. Explain the nature of aqueous solution of NH4Cl. Give equation.

2. Calculate EAN of central metal ion in

(a) K4[Fe(CN)6] and (b) [Co(NH3)4 Cl2]+

3. Define the terms 'order' and 'molecularity'.4. Mention the structures and names of the monomers used in

a) Bakelite b) Nylon.5. What are Hormones? Give 2 examples.

6. Give the deficiency diseases caused by A, D, E, K Vitamins.7. Define Analgesics. Give 2 examples.

8. What are Antibiotics? Give 2 examples.9. Write Hell Volhard Zelinsky reaction with equation.10. What is Chloropicrin? How is it formed from CHCl3? Give equation.

SECTION - B

Note: 1) Answer any SIX questions.2) Each question carries FOUR marks. 3) All are Short answer type questions. 6 4 = 24

11. What is colligative property? Give 2 examples. What is the molality (m) ofsolution containing 0.46 g of ethanol in 1000 g of water.

12. Derive Bragg's equation.

13. Write Faraday's First law of electrolysis.A current of 0.25 amp. is passed through CuSO4 solution for 45 minutes.Calculate the mass of Cu deposited at cathode. (At Wt. of Cu = 63.6).

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14. What is Catalysis? How is it classified? Give an example for each type.

15. State Hess's law of constant heat summation. Give 2 applications of it.

16. Discuss froth flotation process. Mention the function of pine oil and sodium ethylxanthate in this process.

17. Explain the preparation of NH3 by Cyanamide process.

18. Give the Werner structures for the following complex compounds.a) CoCl3.6 NH3 b) CoCl3. 5 NH3c) CoCl3. 4 NH3 d) CoCl3. 3 NH3

SECTION - CNote: 1) Answer any TWO questions.

2) Each question carries EIGHT marks. 3) All are Long answer type questions. 2 8 = 16

19. Discuss the collision theory of reaction rates. Support your explanation with arelevant diagram.

20. a) How is bleaching powder manufactured industrially?b) Give the reactions of Ozone with the following.i) Ag2O ii) KI iii) Pb iv) BaO2

21. a) Explain the preparation of ethyl alcohol from molasses.b) How ethyl alcohol reacts withi) H2SO4, 140 C ii) CH3COOH iii) Na metal iv) CH3MgI

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