When but-3-en-2-ol reacts with aq HBr, the product formed is

Question

When but-3-en-2-ol reacts with aq HBr, the product formed is (A) 3-bromobut-1-ene (B) 1-bromobut-2-ene (C) a mixture of both A and B (D) 2-bromobut-2-ene

Tardigrade Admin · Accepted Answer

The reactants form allyl carbocation, which is stability by delocalization of electrons. <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-ms3dyrntdcjj.png" />

Q. When but-3-en-2-ol reacts with aq HBr, the product formed is

3-bromobut-1-ene

1-bromobut-2-ene

a mixture of both A and B

2-bromobut-2-ene

The reactants form allyl carbocation, which is stability by delocalization of electrons.