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Chemistry
Rate of dehydration of alcohols follows the order:
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Q. Rate of dehydration of alcohols follows the order:
JEE Main
JEE Main 2013
Alcohols Phenols and Ethers
A
$2^{\circ} > 1^{\circ} > CH_{3}OH> 3^{\circ}$
3%
B
$3^{\circ} > 2^{\circ} > 1^{\circ} > CH_{3}OH$
73%
C
$2^{\circ} > 3^{\circ} > 1^{\circ} > CH_{3}OH$
3%
D
$CH_{3}OH>1^{\circ}>2^{\circ}>3^{\circ}$
21%
Solution:
The order of dehydration among three type of alcohols is $3^{\circ} > 2^{\circ} > 1^{\circ} > CH_{3}OH$. This behaviour is related to the relative stabilities of carbocations $\left(3^{\circ} > 2^{\circ} > 1^{\circ} \right)$.