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Rajiv Gandhi University of Health Sciences, Karnataka
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I Year Pharm. D Degree Examination – Jan 2014
Time: Three Hours
Max. Marks: 70 Marks
PHARMACEUTICAL ORGANIC CHEMISTRY
Q.P. CODE: 2877
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Your answers should be specific to the questions asked
Draw neat labeled diagrams wherever necessary. Answer all questions
LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
- Discuss on reaction mechanism and kinetics of both the SN1 and SN2 reaction. Elaborate the different factors on which SN reactions depends upon.
- Discuss on electrophillic aromatic substitution in benzene with respect to activating and deactivating groups. Write a note on resonance stabilization of benzyl radical. Add a note on side chain halogenation of alkyl benzene.
- Discuss free radicals chain reactions of alkanes with mechanism in detail. Add a note on stability of free radicals
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SHORT ESSAYS (Answer any Six) 6 x 5 = 30 Marks
- Discuss the mechanism involved in theory of nitration and sulphonation.
- Discuss the mechanism involved in Aldol and crossed Aldol condensation.
- Discuss the mechanism involved in anti-Markownikoff's rule
- What is isomerism? Emphasize on keto-enol isomerism
- Write the preparation of different acid derivatives with example.
- Discuss 1. Phase transfer catalysis 2. Hydrogen bonding.
- Write in detail on intermolecular forces.
- Write the structure, assay and uses of 1. Dimercaprol 2. Saccharin sodium.
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SHORT ANSWERS 10 x 2 = 20 Marks
- Write the similarities between SN2 and E2
- Write the meaning and importance of second order of reaction in reaction kinetics.
- Nomenclature of aldehydes
- Write some catalysts for oxidation and reduction reactions
- Structure and uses of SLS.
- Add a note on diazotization reaction
- What are Carbocations? Write example
- Write the structure of Vinyl Bromide and Allyl iodide.
- Walden Inversion
- Why water boiling point is more than ethanol and ethanol B.P is more than acetone?
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