question_answer

Aniline on treatment with conc. \[HN{{O}_{3}}+\] conc.  \[{{H}_{2}}S{{O}_{4}}\] mixture yields                                   [AIIMS 1992]

A)                 o- and p-nitroanilines    

B)                 m-nitroanilines

C)                 A black tarry matter       

D)                 No reaction

Correct Answer: C

Solution :

             Nitration of aniline without protecting the amino group is not possible because \[HN{{O}_{3}}\]is a strong oxidising agent which oxidises aniline.