Nitrobenzene on further excessive nitration g | vedclass

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(B) The $-NO_2$ group is a strong electron-withdrawing group and is meta-directing. When nitrobenzene undergoes further nitration with a mixture of co

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$m-$dinitrobenzene

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(B) The $-NO_2$ group is a strong electron-withdrawing group and is meta-directing. When nitrobenzene undergoes further nitration with a mixture of concentrated $HNO_3$ and concentrated $H_2SO_4$,the incoming nitro group is directed to the meta-position,resulting in the formation of $m-$dinitrobenzene. The reaction is: $C_6H_5NO_2 + HNO_3 \xrightarrow{H_2SO_4} C_6H_4(NO_2)_2 + H_2O$.

Nitrobenzene on further excessive nitration gives

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