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  4. Assertion: Picric acid is a strong acid inspite of absence of carboxylic group. Reason: Three —NO2 groups in picric acid activate the phenolate ion.

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Q. Assertion : Picric acid is a strong acid inspite of absence of carboxylic group.
Reason : Three $—NO_2$ groups in picric acid activate the phenolate ion.

Alcohols Phenols and Ethers

Solution:

Three $—NO_2$ groups in picric acid deactivate the phenolate ion. Due to electron withdrawing nature of $—NO_2$ groups, picric acid becomes stronger acid than phenol.