Question

Which of the following alcohols will yield the corresponding alkyl chloride on reaction with concentrated HCl at room temperature?

Answer 1

Answer (d).

As tertiary carbocation is most stable, so tertiary alcohols are most reactive towards cone. HCl. Hence, the reaction can be conducted at room temperature only, while primary and secondary alcohols require the presence of a catalyst $ZnC{l}_2$.

The tertiary carbocation is most stable so it is further attacked by $C{l}^{-}$ nucleophile as follows