Question

The alcohol which easily reacts with conc. $HCl$ is

• A. $ CH_{3}-CHOH-CH_{2}-CH_{3} $
• B. $ (CH_{3})_{3}-C-OH $
• C. $ CH_{3}-CH_{2}-CH_{2}-CH_{2}-OH $
• D. $ (CH_{3})_{2}-CH-CH_{2}OH $

Answer 1

Answer: (B)

Tertiary alcohol readily reacts with halogen acid.

Presence of $3$ alkyl group increases electron density on $ 3^{\circ} $ carbon atom. Hence, $-OH$ group is easily removed. After removal of $-OH$ group $ 3^{\circ} $ carbonium ion is formed which is most stable.