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Chemistry
Polysubstitution is a major drawback in:
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Q. Polysubstitution is a major drawback in:
JEE Main
JEE Main 2019
Amines
A
Reimer Tiemann reaction
7%
B
Friedel Craft's acylation
12%
C
Friedel Craft's alkylation
65%
D
Acetylation of aniline
16%
Solution:
Polysubstitution is a major drawback of Friedal craft’s alkylation. It is so because activating behaviour of benzene ring increases with increase in number of alkyl group on benzene ring.