Question

The compound which reacts fastest with Lucas reagent at room temperature is

• A. butan-1-ol
• B. butan-2-ol
• C. 2 -methyl propan-1-ol
• D. 2 -methyl propan-2-ol

Answer 1

Answer: (D)

The order of reactivity of alcohols towards Lucas reagent is as Tertiary $>$ Secondary $>$ Primary
since $2$ -methyl propan- $2$ -ol is a tertiary alcohol, hence it reacts fastest with Lucas reagent at room temperature.