Max. Marks: 75 Marks
Pharmaceutical Organic Chemistry - II
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Q.P. CODE: 5009
Your answers should be specific to the questions asked
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Draw neat labeled diagrams wherever necessaryLONG ESSAYS (Answer any Two)
2 x 10 = 20 Marks
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1.
What is electrophilic aromatic substitution reaction? Discuss the mechanism of nitration and
halogenation of benzene.
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2.
What are aromatic acids? Give any three chemical reactions of benzoic acid. Add a note on
acidity of aromatic acids.
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3.
Explain drying, semidrying and non-drying oils with examples. Define and explain the
principle involved in the determination of Saponification value (Any one method).
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SHORT ESSAYS (Answer any Seven)
7 x 5 = 35 Marks
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4.Define activating and deactivating groups with examples. Discuss the mechanism of
sulphonation of benzene.
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5.
Explain the aromaticity, orbital picture and resonance structure of benzene.
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6.What are phenols? Discuss the acidity of phenols.
7.
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Write any two synthesis and reactions of Anthracene.
8.
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What are aromatic amines? Explain the basicity aromatic amines.9.
Describe any one method to determine iodine value with its significance.
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10.
Write the any two synthesis and reactions of phenanthrene.
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11.Define angle strain. Discuss why higher cycloalkanes are more stable than lower members.
12.
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Give any four methods of synthesis of cycloalkanes.
SHORT ANSWERS (Answer All)
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10 x 2 = 20 Marks13.
Write the structure and uses of DDT and BHC.
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14.
Give the synthesis of benzoic acid.
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15.Write the significance of hydrogenation of fats and oils.
16.
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Define rancidity. Give its significance.
17.
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Give the compositions of fats and oils.18.
Give any one synthesis of naphthalene.
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19.
Write the structure and medicinal uses of triphenylmethane.
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20.Give the structure and uses of one medicinally important phenanthrene derivatives.
21.
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Give addition reactions of cyclopropane.
22.
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What is Sache ? Mohr's theory? Explain.*****
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