Rajiv Gandhi University of Health Sciences, Karnataka
I Year Pharm-D Examination – NOV 2017
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Time: Three Hours
Max. Marks: 70 Marks
PHARMACEUTICAL ORGANIC CHEMISTRY
Q.P. CODE: 2854
Your answers should be specific to the questions asked
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Draw neat labeled diagrams wherever necessary
LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
- What are dienes? Classify them and explain electrophilic addition to conjugated dienes.
- Explain the effects of –OH group and –NO2 group on electrophilic aromatic substitution reaction with examples.
- Discuss the mechanism and stereochemistry of nucleophilic substitution reactions.
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SHORT ESSAYS (Answer any Six) 6 x 5 = 30 Marks
- Explain the mechanism involved in Cannizaro reaction.
- Write a note on dehydration of alcohols.
- Explain the theory of resonance.
- Give the preparation assay and uses of aspirin.
- Discuss the acidity of carboxylic acids.
- How are cycloalkanes prepared?
- What is the mechanism involved in the addition of HBr to alkenes in the absence of peroxides.
- Give the reaction and mechanism of Benzoin condensation.
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SHORT ANSWERS 10 x 2 = 20 Marks
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- What is Hydrogen bonding?
- State the Saytzeff rule.
- How will you convert acid to acid chloride?
- Write the structure and uses of Vanillin.
- Define heat of hydrogenation.
- Illustrate the resonance structures of Benzyl cation.
- Give the structures and uses of dimercaprol and methyl salicylate.
- Write the structure of cyclohexene and ethanoic acid.
- Define hyperconjugation. Give examples.
- Give the Claisen condensation.
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