GTU B.Pharm 2019 Winter Question Papers || Gujarat Technological University
Seat No.:
Enrolment No.
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Subject Code: 2240004
Subject Name: Pharmaceutical Chemistry — VI (Organic Chemistry — II)
Time: 02:30 PM TO 05:30 PM
GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER- 4 EXAMINATION - WINTER -2019
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Instructions:
- Attempt any five questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Define the following terms: | 06 |
|---|---|---|
| (1) Optical activity (i1) Geometric isomerism (ii1) Enantiomer (iv) Diastereomer (v) Chiral center (1v) Specific rotation | ||
| (b) Write note on stereochemistry of Biphenyls and Spirans. | 05 | |
| (c) What is resolution? Explain the methods for racemic modification in to enantiomers. | 05 | |
| Q.2 | (a) What is green chemistry? What are the approaches to achieve it? Discuss it suitable example. | 06 |
| (b) Give methods of preparation of ketones. | 05 | |
| (c) Explain cannizaro and cross cannizaro reaction with mechanism. | 05 | |
| Q.3 | (a) Give preparation and reactions of diazonium salt. | 06 |
| (b) Explain diastereomers and their properties with suitable example. | 05 | |
| (c) What are nano particles ? Discuss uses of nano particles in Pharmacy. | 05 | |
| Q.4 | (a) Discuss the Sequence rule to assign configuration with example. | 06 |
| (b) What are phenols? Give methods of preparation of Phenols. | 05 | |
| (c) Write note on Microwave synthesis and its application. | 05 | |
| Q.5 | (a) Give the structure of: (1) Furan (2) Pyridine (3) Pyrazole (4) Pyridazine (5) Isoxazole | 06 |
| (b) Define Nucleophilic aromatic substitution reaction. Explain the Benzyne Mechanism. | 05 | |
| (c) Explain Hofmann degradation of amides. | 05 | |
| Q.6 | (a) Explain the following reaction: (1) Kolbe reaction (i1) Fries rearrangement | 06 |
| (b) Give THREE reactions of the following: (1) Pyrrole (2) Pyrimidine | 05 | |
| (c) Give methods of preparation of carboxylic acid. | 05 | |
| Q.7 | (a) What are carboxylic acid derivative? Explain preparation and reaction of any one carboxylic acid derivative. | 06 |
| (b) Write a short note on the following. 1) Michael addition reaction i1) Knorr pyrrole synthesis | 05 | |
| (c) Explain preparation and reactions of Pyridine. | 05 |
Total Marks: 80
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Date: 19-12-2019
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