.

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
The order of acidic strength :
`(-COOH) gt` Phenol with `EWG (-NO_2 gp.) gt` phenol `(C -= C)` (sp character).
Two moles of base `(overset (Ө) N H_2)` would abstract `2 mol` of most acidic `H^(oplus)` out of the four groups, i.e., from `(COOH)` and phenol with `EWG[(-NO_2)` group].
Hence, after the abstraction of `H^(oplus)` from `(COOH)` and phenolic `(OH)` with `(NO_2)` group at `m-`position, the structure of the product would be `(a)`.
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