Rajiv Gandhi University of Health Sciences, Karnataka
Third Semester B. Pharm Degree Examination - 02-Jan-2020
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Time: Three Hours Max. Marks: 75 Marks
Pharmaceutical Organic Chemistry - I
Q.P. CODE: 5009
Your answers should be specific to the questions asked
Draw neat labeled diagrams wherever necessary
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LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
- What is Electrophilic aromatic substitution reaction? Discuss the mechanism of nitration and Friedelcraft’s alkylation.
- What are Aromatic amines? Explain diazotization reaction with its mechanism. Add a note on basicity of amines.
- Define fats and oils. Explain drying, semidrying and non-drying oils with examples. Define and explain the principle involved in the Iodine value (any one method).
SHORT ESSAYS (Answer any Seven) 7 x 5 = 35 Marks
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- Halogens are deactivating group but ortho and para director. Give reasons.
- Discuss the mechanism of Halogenation and Sulphonation of benzene.
- What are phenols? Discuss the acidity of phenols.
- Give any three chemical reactions of benzoic acid.
- Describe any one method of determine Saponification value with its significance.
- Write any two synthesis and reactions of Naphthalene.
- Discuss the Bayer’s strain theory with limitations.
- Give any four methods of synthesis of Cycloalkanes.
- Write any two synthesis and reactions of Anthracene.
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SHORT ANSWERS (Answer All) 10 x 2 = 20 Marks
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- What is Huckel’s rule? Write its importance.
- Write the structure and uses of DDT and BHC.
- Give the structure and uses of Resorcinol and Naphthols.
- Define rancidity. Give its significance.
- Define acid value. Give its significance.
- What is friedelcraft’s acylation?
- Write the structure and medicinal uses of Diphenylmethane.
- Give reactions of Cyclobutane.
- What is a Coulson and Moffitt’s modification?
- Give the compositions of fats and oils.
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This download link is referred from the post: RGUHS B.Pharm 3rd Year 2020 Previous Question Papers - Rajiv Gandhi University of Health Sciences
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