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How is carbolic acid prepared from benzene diazonium chloride?

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in Chemistry – Class 12 by (188k points)
How is carbolic acid prepared from benzene diazonium chloride?

(a) Treating it with nitrous acid at 275K

(b) Preparing an aqueous solution and warming it

(c) Treating it with sodium hydroxide

(d) Freezing it

This question was addressed to me by my school principal while I was bunking the class.

This interesting question is from Alcohols and Phenols topic in chapter Alcohols, Phenols and Ethers of Chemistry – Class 12

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The correct answer is (b) Preparing an aqueous solution and warming it

Explanation: Carbolic acid is another name for phenol. Simply warming an aqueous solution of benzene diazonium chloride salt or treating it with a dilute acid, will result in the formation of phenol.

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