Max. Marks: 70 Marks
--- Content provided by FirstRanker.com ---
PHARMACEUTICAL ORGANIC CHEMISTRY ? I
(Revised Scheme 3)
--- Content provided by FirstRanker.com ---
Q.P. CODE: 2604[
Your answers should be specific to the questions asked
--- Content provided by FirstRanker.com ---
Draw neat labeled diagrams wherever necessary
LONG ESSAYS (Answer any Two)
--- Content provided by FirstRanker.com ---
2 x 10 = 20 Marks1.
Write any two methods for the preparation of cycloalkanes. Explain the Bayer's strain theory
--- Content provided by FirstRanker.com ---
with its limitations.2.
Define and give the mechanism of i) Cannizzaro's reaction ii) Benzoin condensation.
--- Content provided by FirstRanker.com ---
3.
What do you mean by addition reaction? What happens when propene is treated with hydrogen
bromides? Discuss the mechanism involved. What is peroxide effect?
--- Content provided by FirstRanker.com ---
SHORT ESSAYS (Answer any Six)
6 x 5 = 30 Marks
--- Content provided by FirstRanker.com ---
4.Outline the conversion of carboxylic acid in to their functional derivatives.
5.
--- Content provided by FirstRanker.com ---
Explain the effect of substituents on the acidity of phenols.
6.
--- Content provided by FirstRanker.com ---
Write a note on Saytzeff's elimination.7.
Explain the stability of conjugated dienes.
--- Content provided by FirstRanker.com ---
8.
Discuss the mechanism involved in Aldol condensation.
--- Content provided by FirstRanker.com ---
9.Explain Diels alder reaction.
10.
--- Content provided by FirstRanker.com ---
Write the rules of Nomenclature of alkane, alkene, alkyne with examples.
11.
--- Content provided by FirstRanker.com ---
Discuss the mechanism involved in SN1 and SN2.SHORT ANSWERS
10 x 2 = 20 Marks
--- Content provided by FirstRanker.com ---
12.
Define hydrogen bonding with example.
--- Content provided by FirstRanker.com ---
13.What is polar aprotic solvent?
14.
--- Content provided by FirstRanker.com ---
Attacking reagent.
15.
--- Content provided by FirstRanker.com ---
Distinguish between functional and positional isomerism with examples.16.
How is aniline is converted to chlorobenzene.
--- Content provided by FirstRanker.com ---
17.
Write the IUPAC name and structure of:
--- Content provided by FirstRanker.com ---
a) Ethyl alcohol b) Isopropyl alcohol.18.
Define an acid according to Lewis theory.
--- Content provided by FirstRanker.com ---
19.
The dipolemoment of trans-dichloroethylene is zero. Why?
--- Content provided by FirstRanker.com ---
20.What is meant by free radical? Give an example.
21.
--- Content provided by FirstRanker.com ---
Define carbene with example.
*****
--- Content provided by FirstRanker.com ---