In the following reaction sequence,[ C ] is : | vedclass

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(D) $1$. The starting material is $p$-toluidine. Treatment with $NaNO_2 + HCl$ at $0-5 \ ^{\circ}C$ followed by $Cu_2Cl_2 + HCl$ (Sandmeyer reaction)

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(D) $1$. The starting material is $p$-toluidine. Treatment with $NaNO_2 + HCl$ at $0-5 \ ^{\circ}C$ followed by $Cu_2Cl_2 + HCl$ (Sandmeyer reaction) replaces the $-NH_2$ group with a $-Cl$ atom,forming $1$-chloro-$4$-methylbenzene (p-chlorotoluene) as $[ A ]$.$2$. Reaction of $p$-chlorotoluene with $Cl_2$ in the presence of $h
u$ (free radical chlorination) occurs at the side-chain methyl group to form $1$-chloro-$4$-(chloromethyl)benzene as $[ B ]$.$3$. Treatment of $[ B ]$ with $Na$ in dry ether (Wurtz reaction) leads to the coupling of two benzyl groups,resulting in $1,2$-bis($4$-chlorophenyl)ethane as the major product $[ C ]$.

In the following reaction sequence,$[ C ]$ is :

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