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Assertion (A) Phenol forms 2, 4, 6-tribr...

Assertion (A) Phenol forms 2, 4, 6-tribromophenol o treatement with `Br_(2)` in carbon disulphide at 273K.
Reason (R) Bromine polarises in carbon disulphide.

A

If both assertion and reason are true, and reason is the true explanation of the assertion.

B

If both assertion and reason are true, but reason is not the true explanation o the assertion.

C

if assertion is true, but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
Correct assertion: Phenol forms a mixture of p-bromophenol (major) and o-bromophenol (minor) on treatment with `Br_(2)` in `CS_(2)`.
Correct reason: `CS_(2)` suppresses the ionization of phenol thereby decfreasing the electron-donating ability of the oxygen atom of the OH group to the benzene ring.
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