Download JNTUK B.Pharm 1-2 2013 Nov B1206 Pharm Organic Chemistry II Question Paper

Download JNTUK (Jawaharlal Nehru Technological University Kakinada / JNTU-Kakinada) B.Pharmacy (Bachelor of Pharmacy) 1-2 (1st Year 2nd Sem) 2013 November B1206 Pharm Organic Chemistry II Previous Question Paper

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Code No: B1206/R10 R10
I B.Pharmacy II Semester Regular Examinations, Oct/Nov 2013
PHARM ORGANIC CHEMISTRY -II
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
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1. (a) Describe oxidation and dehydration of alcohols
(b) Distinguish test for 1

, 2

, and 3

alcohols. [8+7]
2. Compare the resemblance and dierence properties of phenols with those of alco-
hols. [15]
3. (a) Explain the claisen rearrangement for the preparation of phenols.
(b) Write a short note on stability of phenoxide ion. [8+7]
4. Write the important methods of preparation of aldehydes and ketones. [15]
5. (a)Write the reduction reactions of acetaldehyde.
(b) Write the mechanism of the following
(i)Clemmensen reduction with suitable examples.
(ii)Witting reactions. [5+10]
6. (a) Write the hydrolysis, reduction reactions of esters.
(b) Write an account of malonic and acetoacetic esters, their importance in syn-
thesis. [8+7]
7. (a) Discuss the basicity of amines. Explain why aliphatic-amines are stronger
bases than ammonia.
(b) Discuss the Hinsberg method of separation of mixture of amines. [8+7]
8. (a) Dene Isonitriles. Write any two important methods of preparation of Isoni-
triles.
(b) Distinguish Nitriles from Isonitriles. Discuss the various functional reactions
of Isonitriles. [8+7]
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