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Among the following the most reactive to...

Among the following the most reactive towards alcoholic KOH is

A

`CH_2=CHBr`

B

`CH_3COCH_2CH_2Br`

C

`CH_3CH_2Br`

D

`CH_3CH_2CH_2Br`

Text Solution

Verified by Experts

The correct Answer is:
B
In `CH_3-underset(O)underset(||)(C)-overset(alpha)(CH_2)-CH_2-Br` hydrogen is more acidic due to electron withdrawing effect of `-overset(|)(C)=O` group. Therefore it can be easily abstracted by a base ). (KOH Further, the product formed is stabilized by resonance due to conjugation of the double bond.
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