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Rajiv Gandhi University of Health Sciences, Karnataka
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I Year Pharm-D Degree Examination – NOVEMBER 2015
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
LONG ESSAYS (Answer any two) 2 x 10 = 20 Marks
- Define and give the mechanism of: (a) Cannizzaro reaction (b) Aldol condensation.
- State the Anti-Markovnikov's rule. Write the mechanism of addition of HBr to propene in the absence and presence of peroxide.
- Write the mechanism of Friedel Craft's alkylation and acylation with their limitations.
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SHORT ESSAYS (Answer any six) 6 x 5 = 30 Marks
- Write the structure and medicinal uses of Benzyl benzoate, Saccharin sodium.
- Define and classify isomerism with suitable examples.
- Discuss about SN1 mechanism and stereochemistry.
- Write the effect of temperature in 1,2-addition and 1,4 addition.
- Discuss Friedel Craft's acylation with mechanism.
- Explain the mechanism of dehydration of Alcohols.
- What is Bayer's strain theory and explain with examples.
- Give the mechanism of Benzoin condensation.
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SHORT ANSWERS 10 x 2 = 20 Marks
- Outline the conversion of carboxylic acid to ester.
- Define keto-enol Isomerism with examples.
- Define Nucleophiles with examples.
- Name the following compounds:
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(a) CH3-CH2-CH2-COOH
(b) CH3-C-CH3
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CH3 - State the Lowry Bronsted theory of Acids and Bases.
- Which is more stable trans-2-butane or cis-2-butane? Why?
- What is Homolysis and Heterolysis?
- Comment phenol is Acidic but not ethanol.
- Define hyper conjugation.
- Outline the conversion of Aniline to Benzoic Acid.
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