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  • Assertion (A): Phenol forms 2,4, 6-tribromophenol on treatment with Br_{2} in carbon disulphide at 273 K. Reason (R): Bromine polarises in carbon disulphide.

In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:

Assertion (A): Phenol forms 2,4, 6-tribromophenol on treatment with Br_{2} in carbon disulphide at 273 K.
Reason (R): Bromine polarises in carbon disulphide.

(i) Assertion and reason both are correct and reason is correct explanation of assertion.
(ii) Assertion and reason both are wrong statements.
(iii) Assertion is correct statement but reason is wrong statement.
(iv) Assertion is wrong statement but reason is correct statement.
(v) Both assertion and reason are correct statements but reason is not correct explanation of assertion..

Answers (1)

(ii) When bromine is treated with phenol in water, it forms 2, 4, 6-tribromophenol. Even when the Lewis acid is absent, the polarisation of bromine can still take place in phenols.

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