question_answer

Which of the following compounds will significant amont of meta product during mono-nitration reaction?       JEE Main Solved Paper-2017

A)                            

B)  

C)                            

D)  

Correct Answer: C

Solution :

 (i) Nitration is carried out in presence of concentrated \[\text{HN}{{\text{O}}_{\text{3}}}\text{+}\]concentrated\[\text{ }\!\!~\!\!\text{ }{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{.}\] (ii) Aniline acts as base. In presence of \[\text{ }\!\!~\!\!\text{ }{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\] its protonation takes place and anilinium ion is formed (iii) Anilinium ion is strongly deactivating group and meta directing in nature so it give meta nitration product in significant amount.