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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

`-NO_(2)`

B

`-C-=N`

C

`-SO_(3)H`

D

`-COOH`

Text Solution

Verified by Experts

The correct Answer is:
A
`-NO_(2)` group is not dactivating `(-R and -I`effect)
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