GTU B.Pharm 2018 Winter Question Papers || Gujarat Technological University
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Seat No.:
Subject Code: 230003
GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER - 3- EXAMINATION -WINTER - 2018
Subject Name: Pharmaceutical Chemistry - 11T
Time: 10:30 AM TO 01:30 PM
1. Attempt any five questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Comment on methods of preparation of alkanes. 06
(c) Write a note on molecular orbital theory. 05
Q.2 (a) Enlist the methods used to determine molecular weight of organic compound. Discuss any two in details. 06
(b) Write a detailed note on carbocation. 05
(c) Enlist the reactions of alcohols. Comment on its reaction with metals. 05
(b) Write a note on Oxo process. 05
(c) Write a note on hydroboration oxidation reaction of alkenes. 05
Q.4 (a) Give reason : 1) Acetylene is a linear molecule. 06
2) Alkyl halides give nucleophilic substitution while aryl halides dont.
(b) Write a note on cycloaddition reactions. 05
(c) Write a note on crown ethers. 05
Q.5 (a) Give the structure of :1) t-butyl ethyl ether 2) iso-pentyl alcohol 3) 3,6-dimethyl-1-octene 4) 4-methyl hept-2-en-5-yn-1-ol 5) 1,3 cyclohexadiene 6) dimethyl acetylene. 06
(b) What are dienes? Comment on stability of conjugated dienes. 05
Q.6 (a) What are alcohols? Comment on their nomenclature and physical properties. 06
(b) Write a note on reactions of epoxides. 05
(c) Comment on resonance and hyper-conjugation. 05
Q.7 (a) What are alkynes? Comment on method of preparations of alkynes. 06
(c) Define 1) Carbene 2) nitrene 3) hybridization 4) electronegativity 5) covalent bond 05
Date: 14/12/2018
Total Marks: 80
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Seat No.:
Subject Code: 230003
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Enrolment No.GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER - 3- EXAMINATION -WINTER - 2018
Subject Name: Pharmaceutical Chemistry - 11T
Time: 10:30 AM TO 01:30 PM
--- Content provided by FirstRanker.com ---
Instructions:1. Attempt any five questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Comment on methods of preparation of alkanes. 06
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(b) Explain 1) Bond energy 2) Lewis acid 3) Vander walls forces 4) Ionic bond 5) Polarity. 05(c) Write a note on molecular orbital theory. 05
Q.2 (a) Enlist the methods used to determine molecular weight of organic compound. Discuss any two in details. 06
(b) Write a detailed note on carbocation. 05
(c) Enlist the reactions of alcohols. Comment on its reaction with metals. 05
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Q.3 (a) Write a note on Kjehldahl’s method of nitrogen estimation. 06(b) Write a note on Oxo process. 05
(c) Write a note on hydroboration oxidation reaction of alkenes. 05
Q.4 (a) Give reason : 1) Acetylene is a linear molecule. 06
2) Alkyl halides give nucleophilic substitution while aryl halides dont.
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3) Addition reactions of alkenes follows Markownikoff's rule.(b) Write a note on cycloaddition reactions. 05
(c) Write a note on crown ethers. 05
Q.5 (a) Give the structure of :1) t-butyl ethyl ether 2) iso-pentyl alcohol 3) 3,6-dimethyl-1-octene 4) 4-methyl hept-2-en-5-yn-1-ol 5) 1,3 cyclohexadiene 6) dimethyl acetylene. 06
(b) What are dienes? Comment on stability of conjugated dienes. 05
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(c) Write a note on Williamson’s synthesis. 05Q.6 (a) What are alcohols? Comment on their nomenclature and physical properties. 06
(b) Write a note on reactions of epoxides. 05
(c) Comment on resonance and hyper-conjugation. 05
Q.7 (a) What are alkynes? Comment on method of preparations of alkynes. 06
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(b) Write a note on sigmatropic reactions 05(c) Define 1) Carbene 2) nitrene 3) hybridization 4) electronegativity 5) covalent bond 05
Date: 14/12/2018
Total Marks: 80
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