HBr reacts fastest with

Question

HBr reacts fastest with (A) 2-methylpropan-2-ol (B) propan-1-ol (C) propan-2-ol (D) 2-methylpropan-1-ol

Tardigrade Admin · Accepted Answer

2-methylpropan-2-ol is a tertiary alcohol and hence have maximum basic nature and most stable carbocation also, i.e., it gets protonated fastest with HBr. <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-szqrlcvznqzn.png" />

Q. HBr reacts fastest with

2-methylpropan-2-ol

propan-1-ol

propan-2-ol

2-methylpropan-1-ol

2-methylpropan-2-ol is a tertiary alcohol and hence have maximum basic nature and most stable carbocation also, i.e., it gets protonated fastest with HBr.