Alcohols Phenols And Ethers Ques 13

13. $HBr$ reacts fastest with

[1992]

(a) 2-Methylpropan-1-ol

(b) 2-Methylpropan-2-ol

(c) propan-2-ol

(d) propan-1-ol.

Show Answer

Answer:

Correct Answer: 13.(b)

Solution:

(b) Since 2-methylpropan-2-ol generates $3^{\circ}$ carbocation, therefore, it reacts fastest with $HBr$.

NOTES

Greater the stability of the intermediate carbocation, more reactive is the alcohol.



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