15.

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2 C 21516

What are meso compounds ? Explain with an example. How is it different from a racemic
mixture ?

Discuss the stability order of 1°, 2° and 3° alkyl free radicals.
Explain the term steric hinderance with suitable example.
Discuss the mechanism of Friedel Crafts acylation reaction.
Write a brief note on meta directing groups aromatic electrophilic substitution reactions.
(5 x 5 = 25 marks)
Section C

Answer any one question.
The question carries 11 marks.

Discuss Bayer’s strain theory. Explain its merits and limitations.
a) Illustrate the application of ozonolysis in locating the position of the double bond in an alkene.
b) Explain oxymercuration - reduction reaction with a suitable example.

(1 x 11 = 11 marks)

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