Assertion: Styrene on reaction with HBr gives 1-bromo-1-phenylethane. Reason: Benzyl radical is more stable than alkyl radical.

Question

Assertion: Styrene on reaction with HBr gives 1-bromo-1-phenylethane. Reason: Benzyl radical is more stable than alkyl radical. (A) If both assertion and reason are true and reason is not the correct explanation of assertion. (B) If both assertion and reason are true but reason is not the correct explanation of assertion. (C) If assertion is true but reason is false. (D) If both assertion and reason are false.

Tardigrade Admin · Accepted Answer

Styrene with HBr, undergo nucleophilic addition reaction. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/3632d2b33f0f38bb3751299d38af9cd0-.png" /> This does not involve free radical mechanism. It is also true that benzyl radical is more stable then alkyl radical.

Q. Assertion : Styrene on reaction with $H B r$ gives 1-bromo-1-phenylethane.
Reason : Benzyl radical is more stable than alkyl radical.

If both assertion and reason are true and reason is not the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

Styrene with $H B r$ , undergo nucleophilic addition reaction.

This does not involve free radical mechanism. It is also true that benzyl radical is more stable then alkyl radical.

Q. Assertion : Styrene on reaction with HBr gives 1-bromo-1-phenylethane. Reason : Benzyl radical is more stable than alkyl radical.