Ethylbenzene when treated with chlorine in presence of light mainly gives:a)βphenylethyl chlorideb)α-phenylethyl chloridec)o-chloroethyl benzened)o-and p-chloroethylbenzeneCorrect answer is option 'B'. Can you explain this answer?

Question

Ethylbenzene when treated with chlorine in presence of light mainly gives:a)&beta;&shy;phenylethyl chlorideb)&alpha;-phenylethyl chloridec)o-chloroethyl benzened)o-and p-chloroethylbenzeneCorrect answer is option 'B'. Can you explain this answer?

Answer

A mixture of products including o-chloroethylbenzene, p-chloroethylbenzene, and 1,2-dichloroethylbenzene.

Answer

We know stability order of free radicals are benzyl>allyl>tertiary>secondary>primary> methyl free radical .
in case of alpha position benzyl free radical is formed which is more stable than beta position , so alpha position Easley free radical substitution takes place.

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