Question

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.
Reason R : Phenols react with halogen acids violently. In the light of the above statements.
Choose the most appropriate from the options given below:

• A. Both A and R are true but R is NOT the correct explanation of A
• B. A is false but R is true
• C. A is true but R is false
• D. Both A and R are true and R is the correct explanation of A

Answer 1

The Correct Option is C

Assertion (A): The given statement is correct because in phenol, the hydroxyl group cannot be replaced by a halogen atom through a simple halogen acid reaction. This is due to the resonance stabilization of the hydroxyl group in phenol, which prevents such a substitution.
Phenol (C₆H₅OH) + HX → No Reaction
Reason (R): The statement that phenols react violently with halogen acids is incorrect in this context, as this does not relate to the inability to form aryl halides by replacing the hydroxyl group.

Thus, Assertion (A) is correct but Reason (R) is false.

So, the correct answer is : Option (3).