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Which one of the following substitutents...

Which one of the following substitutents at para-position is most effective in stabilizing the phenoxide ion?

A

`-CH_(3)`

B

`-OCH_(3)`

C

`-COCH_(3)`

D

`-CH_(2)OH`

Text Solution

Verified by Experts

The correct Answer is:
C
The substituent `-COCH_(3)` is electron withdrawing due to `(-I) and (-M)` effect and increases stability of phenoxide ion.
. Due to extended conjugation `-oversetoverset(O)(||)(C)-CH_(3)` group increases stability of the phenoxide ion.
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