Rajiv Gandhi University of Health Sciences, Karnataka
First Year Pharm - D Examination – Feb/March 2011
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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. Draw neat labeled diagrams wherever necessary.
LONG ESSAYS (Answer any Two) 2 x 10 = 20 Marks
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- Explain and give mechanism involved in (a) Benzoin condensation (b) Michael condensation
- Explain the effect of substituents on electrophilic aromatic substitution reaction with suitable examples
- What are dienes, classify them, explain electrophilic addition to conjugated dienes. Discuss the stability of conjugated dienes
SHORT ESSAYS (Answer any Six) 6 x 5 = 30 Marks
- Explain cannizzaro reaction with mechanism
- Compare the basicity of methyl amine and aniline
- Explain the chlorination of methane with mechanism
- Give the mechanism of sulphonation and chlorination of benzene
- Write a note on dehydration of alcohols
- Explain the term Hybridisation and Hyperconjugation with examples
- Explain the Friedel Craft's reaction with its
- Explain the acidity of carboxylic acid and add a note on effect of substituents
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SHORT ANSWERS 10 x 2 = 20 Marks
- Write a note on rearrangement of carbocations
- Explain peroxide effect
- Write Diel's Alder reaction
- Give the reaction of Williamson's synthesis of ether
- What is Halohydrin reaction
- Outline the concept of resonance give examples
- Define nucleophile, classify with examples
- How will you convert acetaldehyde to acetic acid
- What is pyrolysis
- Give any one method of preparation of Lactic acid and mention its uses
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