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Which of the following group activates t...

Which of the following group activates the benzene ring most towards electrophilic substitution

A

`-CHO`

B

`-NR_2`

C

`-NHCOCH_(3)`

D

`-NO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`-NR_(2)` is a + R group.
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