Question

What is the formula of m-Dinitro benzene?

(a) (1,3)-Dinitrobenzene

(b) (1,2)-Dinitrobenzene

(c) (1,4)-Dinitrobenzene

(d) (1,5)-Dinitrobenzene

The question was asked during an interview for a job.

Asked question is from Preparations topic in division Nitration of Unit Processes

Answer 1

Right choice is (a) (1,3)-Dinitrobenzene

To explain: ‘m’ stands for ‘meta’, and it’s position is 3rd Carbon on the benzene ring, whereas 2 and 4 are ortho and para respectively.