Assertion : Phenol on oxidation with KMnO_4 g | vedclass

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(D) The Assertion is incorrect because the oxidation of phenol with $KMnO_4$ does not yield meso-tartaric acid; it typically leads to the formation of

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If both the Assertion and Reason are incorrect.

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(D) The Assertion is incorrect because the oxidation of phenol with $KMnO_4$ does not yield meso-tartaric acid; it typically leads to the formation of $p$-benzoquinone or other oxidation products depending on conditions.The Reason is correct because pure phenol is a colourless crystalline solid that turns pink or red upon exposure to air and light due to the formation of phenoquinone (a type of quinone) via atmospheric oxidation.Since the Assertion is incorrect and the Reason is correct,the correct option is $D$.

Assertion : Phenol on oxidation with $KMnO_4$ gives meso-tartaric acid.
Reason : Pure phenol is colourless but turns pink due to oxidation to phenoquinone.

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Assertion : Phenol on oxidation with $KMnO_4$ gives meso-tartaric acid.Reason : Pure phenol is colourless but turns pink due to oxidation to phenoquinone.