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Download RTMNU B.Pharma 3rd Semester 2017 Winter Pharmaceutical Chemistry 3 (Organic) Question Paper

Download RTMNU (Rashtrasant Tukadoji Maharaj Nagpur University) B.Pharma (Bachelor of Pharmacy) 3rd Semester 2017 Winter Pharmaceutical Chemistry 3 (Organic) Question Paper

This post was last modified on 19 January 2020

This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University


B.Pharm.

PHARMACEUTICAL CHEMISTRY–III (Organic)

Paper-2

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Time: Three Hours]

[Maximum Marks : 80

N.B. :— (1) Question No. 1 is compulsory.

(2) Attempt any four questions out of remaining.

(3) Discuss the reaction, mechanism wherever necessary.

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1. Solve any five of the following : 4×5=20

(a) Benzene gives substitution reaction rather than addition. Justify.

(b) Write about keto-enol tautomerism.

(c) How will you differentiate 1º, 2º and 3° amines ?

(d) Carboxylic acids are stronger acids than phenols, explain.

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(e) Explain Satzeff's and Markonikov's rule with suitable example.

(f) Why Carbonyl compounds gives nucleophilic addition reactions ?

(g) Addition of HBr to propene in the presence of peroxide yields n-propyl bromide, Explain.

2. Give a detailed account of electrophilic aromatic substitution reaction including mechanism, reactivity and orientation. 15

3. Depict and discuss the mechanism of following reactions (any three) : 5×3=15

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(a) 2 moles of Acetaldehyde + sod.hydroxide → ?

(b) Propane + Chlorine + UV light → ?

(c) Benzene + Nitric acid + Sulfuric acid → ?

(d) Phenol + Chloroform + Aq. NaoH → ?

(e) Isobutylene + Isobutane + Conc. H₂SO₄ →

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4. What are Aliphatic nucleophilic substitution reactions ? Discuss in detail SN¹ and SN² reactions. 15

5. How will you plan for the following synthesis, starting from benzene (any three) ? 5×3=15

(a) Phenyl acetic acid

(b) 1-phenyl-azo-2-naphthol

(c) 3-bromo-4-amino toluene

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(d) M-nitrobenzophenone

(e) Salicylaldehyde

6. (A) What are organometallic compounds ? Discuss in detail about their preparation and synthetic applications. 10

(B) Enlist the various methods of preparation of aldehydes and ketones. 5

7. Write short notes on any three of the following : 5×3=15

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(a) Functional derivatives of carboxylic acids

(b) Benzyl radical and its stability

(c) Hoffman degradation of amides

(d) E₂ reaction

(e) Aromaticity.

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This download link is referred from the post: RTMNU B-Pharm Last 10 Years 2010-2020 Previous Question Papers || Rashtrasant Tukadoji Maharaj Nagpur University

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