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In the following reaction order , B is ...

In the following reaction order , B is
`CH_(3)CH_(2)COOH overset (P//Br_(2)) to A overset (alc KOH) underset (H^(+)) to B`

A

`CH_(2)=CH-COOH`

B

`CH_(2)-underset(Br)underset(|)CH-COOH`

C

`CH_(3)CH_(2)COBr`

D

`CH_(3)CH_(2)OH`

Text Solution

Verified by Experts

The correct Answer is:
A
`CH_(3)-CH_(2)-COOH overset(P/Br_(2))to CH_(3)-underset(Br)underset(|)CH-COOH underset(H^(+))overset(alc. KOH)to CH_(2)=CH-COOH+HBr`
`P+Br_(2)` is brominating agent that brominates the `alpha`-position. The product then undergo dehydrohalogenation in the pressure of alcoholic potassium hydroxides.
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