p-Chlorotoluene is the major product in which | vedclass

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(C) In reaction $I$,toluene reacts with $Cl_2$ in the presence of $UV$ light,which leads to free radical substitution at the side chain,producing benz

Vedclass · Accepted Answer

$II, III$ only

Vedclass · Answer

(C) In reaction $I$,toluene reacts with $Cl_2$ in the presence of $UV$ light,which leads to free radical substitution at the side chain,producing benzyl chloride $(C_6H_5CH_2Cl)$.In reaction $II$,toluene undergoes electrophilic aromatic substitution with $Cl_2$ in the presence of $Fe$ (a Lewis acid) in the dark. The $-CH_3$ group is ortho/para directing,so $o$-chlorotoluene and $p$-chlorotoluene are formed,with $p$-chlorotoluene being the major product due to steric hindrance at the ortho position.In reaction $III$,$p$-toluidine ($4$-methylaniline) reacts with $NaNO_2 + HCl$ at $273-278 \ K$ to form a diazonium salt,which then reacts with $Cu/HCl$ (Sandmeyer reaction) to replace the diazonium group with a chlorine atom,yielding $p$-chlorotoluene as the major product.Thus,$p$-chlorotoluene is the major product in reactions $II$ and $III$.

$p$-Chlorotoluene is the major product in which of the following reactions?

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