Download GTU (Gujarat Technological University) B.Pharma (Bachelor of Pharmacy) 2018 Summer 3rd Sem 230003 Pharmaceutical Chemistry Iii Previous Question Paper
Seat No: ____________
Enrolment No: ___________
GUJARAT TECHNOLOGICAL UNIVERSITY
B. Pharm. - SEMESTER?3 ? EXAMINATION ? SUMMER -2018
Subject Code: 230003 Date: 09/05/2018
Subject Name: Pharmaceutical Chemistry - III
Time: 02:30 PM TO 05:30 PM
Total Marks: 80
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Method of preparation of Alkene.
06
(b) Write a note on carbocation.
05
(c) Define: 1) Hyperconjugation 2) Molecular formula 3) Emperical formula
05
4) Carbanion 5) Geometrical isomers
Q.2 (a) Write a note on Kjeldahl's method for Nitrogen estimation.
06
(b) Define Hybridization. Explain in detail Hybrid orbitals wit examples.
05
(c) Explain: Sigmatropic reaction.
05
Q.3 (a) Outline difference between SN1 and SN2 reactions of alkyl halides.
06
(b) Explain: 1) Aldol condensation 2) Neighbouring group effect
05
(c) Give Williamson synthesis of ether.
05
Q.4 (a) Define the following:
06
1) Markonikov's rule
2) Ozonolysis
3) Peroxide effect
(b) What are epoxides? Give the methods for preparation of epoxides.
05
(c) Explain: Chlorination of Alkane.
05
Q.5 (a) Give chemical reactions of the following: 1) Alkylhalides 2) Alkynes 3) 06
Alcohols
(b) Write a note on Diels Alder reaction.
05
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(c) Give Structural formula for the following:
05
1) Cinnamic acid
2) Thiourea
3) 2-methoxypentane
4) 2- methyl-2-pentene
5) 1, 4 ?hexadiene.
Q.6 (a) Discuss synthesis of 1?, 2?, 3? alcohol using Grignard reagent with mechanism.
06
(b) Write note on Hydrogen bonding.
05
(c) Differentiate between BMO and ABMO.
05
Q.7 (a) Discuss quantitative estimation of carbon and hydrogen in organic compound.
06
(b) Differentiate between E1 and E2 mechanism of elimination.
05
(c) Write a note on nitrenes.
05
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This post was last modified on 05 March 2021