Seat No.: Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
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B.Pharm . - SEMESTER- II EXAMINATION - SUMMER -2020
Subject Code:BP202TP Date: 27-10-2020
Subject Name: Pharmaceutical organic chemistry- I
Time: 10:30 AM TO 1:30 PM Total Marks: 80
Instructions:
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- Attempt any five questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Write a note on Markovnikov’s orientation. 06
(b) Draw the structure of following compounds, 05
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A. Chloral hydrate D. Citric acid
B. Chlorobutanol E. Iodoform
C. Vanillin F. Benzyl benzoate
(c) Differentiate: SN1 and SN2 reactions 05
Q.2 (a) Write any three reactions of Amines. 06
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(b) Write a note on Diels-alder reaction with examples. 05
(c) Discuss factor affecting E1 reaction. 05
Q.3 (a) Explain reaction with mechanism of Cannizaro reaction and Benzoin condensation. 06
(b) Write detail notes on carbocation. 05
(c) Give qualitative tests of ketones. Give structure and uses of acetone and hexamine. 05
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Q.4 (a) Explain reaction with mechanism of Aldol and crossed Aldol condensation. 06
(b) Explain chlorination of methane with mechanism in details. 05
(c) Give two methods for synthesis of alkyl halides. 05
Q.5 (a) Write a note on acidity of carboxylic acids. 06
(b) Explain: SP hybridization in alkenes with examples. 05
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(c) Give the reaction of following: 05
- Ozonolysis
- Perkin condensation
Q.6 (a) Write short notes on resonance and inductive effect. 06
(b) Give the preparation and reactions of conjugated dienes. 05
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(c) Give structural formula of the following compounds: 05
- Isopentene
- 2,3 diethyl -4- pentyne
- 2,2,4,5 tetramethyl hexane
- 2- methoxy pentane
- 2, 3 dimethyl -3- hexene
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Q.7 (a) Give the reaction of following: 06
- Allylic rearrangement
- Electrophilic addition reaction of alkenes
- Anti markownikoff’s orientation
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(b) Justify: 05
- Lower alcohols are insoluble in water.
- Primary carbocation is more stable than tertiary carbocation.
(c) How Grignard reagent prepared? Write synthetic utility of Grignard reagents. 05
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