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Some meta-directing substituents in arom...

Some meta-directing substituents in aromatic substitution are given which one is the most deactivating?

A

`-COOH`

B

`-NO_2`

C

`-C -= N`

D

`-SO_3H`

Text Solution

Verified by Experts

The correct Answer is:
B
`-NO_2` is most deactivating due to -1 and -M effect.
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