The compound which reacts fastest with lucas reagent (at room temperature) is

Options

A. butan`-1-ol`
B. butan`-2-ol`
C. `2-`methylpropan`-1-ol`
D. `2-`methylpropan`-2-ol`

Answer

D

Explanation

During Lucas test, the alcohol under consideration gets protonated and loses `H_(2)O` molecule o form the corresponding cabocation. Thu, the order of reactivity of alcohols is directly related to the stability of corresponding carbonations. The `3^(2)` alcohol forming the most stable carbocation is most reactive while `1^(@)` alcohol forminf the least stable carbocation is leaast reactive. Thus, `2`-methlypropon `2-01`, bieing a `3^(@)` alchohol reacts fastest.
`CH_(3)-overset(OH)overset(|)underset(CH_(3))underset(|)(C)-CH_(3)`