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(A) The reaction involves the electrophilic aromatic substitution of nitrobenzene with bromine in the presence of iron $(Fe)$.$1$. The $-NO_2$ group i

Vedclass · Accepted Answer

$3,4-$dibromonitrobenzene

Vedclass · Answer

(A) The reaction involves the electrophilic aromatic substitution of nitrobenzene with bromine in the presence of iron $(Fe)$.$1$. The $-NO_2$ group is a strong electron-withdrawing group and is meta-directing.$2$. In the first step,bromination of nitrobenzene occurs at the meta-position to form $m$-bromonitrobenzene.$3$. In the second step,the presence of the bromine atom (which is ortho/para-directing) and the nitro group (which is meta-directing) directs the incoming bromine atom to the position meta to the $-NO_2$ group and ortho to the existing $-Br$ group.$4$. The final major product is $3,4$-dibromonitrobenzene.

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