Question

Assertion (A) Bromination of phenol takes place even in the absence of Lewis acid.
Reason (R) In phenol, $OH$ group attached to benzene ring has highly deactivating effect.

• A. Both A and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both A and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct; $R$ is incorrect.
• D. $R$ is correct; $A$ is incorrect.

Answer 1

Answer: (C)

In case of phenol, the polarisation of bromine molecule takes place even in the absence of Lewis acid. It is due to the highly activating effect of $OH$ group attached to the benzene ring.