NEET2017ChemistryAlcohols Phenols and EthersActual
Assertion : Phenol forms 2, 4, 6-tribromophenol on treatment with Br ₂ - water at 273 ~K . Reason : Phenol is o, p - directing group.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
Step-by-step solution
Phenol forms 2, 4, 6 tribromophenol on treatment with Br _ 2⁻ water. In phenols, the polarisation of bromine takes place even in the absence of Lewis acid.