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10/1/2009 Topic: Test Class: XIIth Page No. (1)

1. CH3COCH2CH2CH2Cl A, A is:

2.

3.

(a) III (b) I, III (c) I, II (d) II, III4. Maximum hydration takes place of:(a) CF3COCF3 (b) CH3COCH3 (c) CH3CHClCOCH3 (d) C6H5COC6H5

5.CH3COCH2CH2COOCH2CH3 A, A formed in this reaction is:

6. Hydrolysis product of A (given below) is:

7. Enolisation is maximum in case of:

8.

9. Greatest amount of hydration is in:

10. A and B are:

11.

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10/1/2009 Topic: Test Class: XIIth Page No. (2)

12. Which one of the following is correct regarding an acetal?(a) it is the condensation product from 2 molecules of aldehyde (b) it is the condensation product from 2 molecules of ketone(c) it is the condensation product from 2 molecules of alcohol (d) it is a diether13. Oppenauer oxidation:(a) is used to prepare ketone (b) uses aluminium t-butoxide as catalyst(c) both are correct (d) none is correct14. Suggest suitable oxidising reagents for following conversions:

(A) CH3CH2CH=CHCH2OH CH3CH2CH=CHCHO (B)(a) MnO2 in A and CrO3 (in glacial acetic acid) in B (b) CrO3 in A and MnO2 in B (c) both correct (d) none is correct15. Aldehyde group can be protected:(a) by acetal formation against attack by alkaline oxidising agents (c) both statements are correct(b) by mercaptal formation against attack by acidic oxidising agents (d) none is correct16. Mixture of CH3CH2OH and CH3CHO can be separated by using:(a) NaHSO3 (b) NH2OH (c) HCN (c) LiAlH4

17. End product of the following sequence of reactions is:

18.

19. Following is hydrated maximum at the position (a) 1 (b) 2 (c) 3 (d) equal

20. C2H5O-CO-OC2H5 A. Product A formed can:(a) give iodoform test (b) further react with CH3MgBr / H3O+ to give t-butyl alcohol (c) be obtained by the ozonolysis of 2,3-dimethyl-2-butene (d) all correct

21.

Concept by- Devender Singh Help Line-01332-270969,9897888342

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10/1/2009 Topic: Test Class: XIIth Page No. (3)

22. (a) CH3COOH (b) CH2(COOH)2 (c) both (d) noneAnswers:-

1. C 2. B 3. (c) 4.(a) 5. C 6. A 7. B 8. A 9. C 10. A 11. B 12. (d) 13. (c) 14. (a) 15. (c) 16. (a) 17. B 18. B 19. (b) 20. (d) 21. B 22. (a)

Concept by- Devender Singh Help Line-01332-270969,9897888342