JEE Main Chemistry question

Toluene reacts with Cl₂ in the presence of FeCl₃ to give X, and in the presence of light to give Y. X and Y are

(A)X = benzal chloride; Y = *o*-chlorotoluene
(B)X = *m*-chlorotoluene; Y = *p*-chlorotoluene
(C)X = *o*- and *p*-chlorotoluene; Y = (trichloromethyl)benzene (benzotrichloride)Correct
(D)X = benzal chloride; Y = *m*-chlorotoluene

Answer: (C)

Solution

FeCl₃ catalyses electrophilic ring chlorination (*o,p* to the activating methyl), giving X = *o*- and *p*-chlorotoluene; light instead initiates radical side-chain chlorination,

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Question ID VK-140188