JEE Main Chemistry question

Chloroform gives a trichloro derivative of an alcohol on reaction with

(A)conc. nitric acid
(B)aq. alkali
(C)acetone and alkaliCorrect
(D)a primary amine and an alkali

Answer: (C)

Solution

Chloroform reacts with acetone in the presence of alkali (nucleophilic addition of the trichloromethyl carbanion, generated from by the base, to the carbonyl of acetone) to give chloretone (1,1,1-trichloro-2-methylpropan-2-ol): $ + =O

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Question ID VK-148103