Alcohols Phenols And Ethers Question 164

Question: Arrange the following alcohols in the increasing order o reactivity with HBr.

(I) benzyl alcohol (II) p-methyl benzyl alcohol (III) p-nitrobenzyl alcohol (IV) p-chlorobenzyl alcohol

Options:

A) I<II<III<IV

B) III<IV<I<II

C) II<I<IV<III

D) IV<II<II<I

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Reactive intermediate carbocation is involved, hence greater the stability of carbocation, greater the reactivity of corresponding alcohols. Stability order = B > A > D > C Reactivity = II > I > IV > III