| Assertion: Phenol forms 2, 4, 6 - tribromophenol on treatment with \[B{{r}_{2}}\] water at 273 K. |
| Reason: Phenol is ortho and para directing in nature. |
A) Assertion and reason both are correct and reason is correct explanation of assertion.
B) Both assertion and reason are correct statements but reason is not correct explanation of assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: B
Solution :
Correct explanation: In aqueous solution, \[B{{r}_{2}}\] gets polarised \[\left( B{{r}^{\delta +}}-B{{r}^{\delta -}} \right)\]and readily releases \[B{{r}^{+}}\] (electrophile) for the electrophilic substitution taking place at all three available ortho and para positions.
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