Haloalkanes and Haloarenes

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : In the light of the above statements, choose the most appropriate from the options given below :

1. A is true but R is false
2. Both A and R are true but R is NOT the correct explanation of A
3. A is false but R is true
4. Both A and R are true and R is the correct explanation of A

Answer

(1) A is true but R is false

Solution

In phenol the C–O bond has partial double bond character (resonance of O lone pair with the ring) and the ring carbon is sp2

⇒ C–O bond is hard to break: C6H5OH + HX no reaction

⇒ A is true

Phenols do not react with halogen acids at all ⇒ R is false

Answer: (1)