1. Tardigrade
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  3. Chemistry
  4. Assertion: Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom. Reason: Phenols react with halogen acids violently.

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Q. Assertion : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.
Reason: Phenols react with halogen acids violently.

Haloalkanes and Haloarenes

Solution:

Aryl halides cannot be prepared by replacing hydroxyl group of phenols because the carbon oxygen bond in phenols has a partial double bond character and is difficult to break being stronger than a single bond.