The compound which would give the most stable carbocation on dehydration is :

Options

A. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)OH`
B. `CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-OH`
C. `CH_(3)-CH_(2)-CH_(2)-CH_(2)OH`
D. `CH_(3)-underset(OH)underset(|)(CH)-CH_(2)CH_(3)`

Answer

B

Explanation

The order of stability of carbocation ion is tertiarygtsecondarygtprimarygtmethyl
Tertiary carbonium ions (in b) are more stable because of electron releasing (`+I` effect) nature of `CH_(3)` group due to which the +ve charge gets dispersed to maximum extent.