Q. Nitration of nitrobenzene at $ 125^{\circ} C $ with mixed acids gives
J & K CETJ & K CET 2008Amines
Solution:
Nitrobenzene on nitration gives $m-$ dinitro benzene as $- NO _{2}$ group is meta-directing.
In this reaction the attacking reagent is $NO _{2}^{+}$
