question_answer

Nitration of nitrobenzene at\[125{}^\circ C\]with mixed acids gives

A)  meta-dinitrobenzene

B)  ortho-dinitrobenzene

C)  para-dinitrobenzene

D)  1, 3, 5-trinitro benzene

Correct Answer: A

Solution :

                Nitrobenzene     on     nitration     gives m-dinitro benzene as\[-N{{O}_{2}}\]group is meta-directing. In this reaction the attacking reagent is\[NO_{2}^{+}\].