Q. What is the correct order of the basic strength of the following?Chemistry Question Image

 1125  173 CMC MedicalCMC Medical 2015 Report Error

Solution:

I > II > III is the correct order of basicity. ? is an electron withdrawing group, thus nitro-anilines are less basic than aniline. ? (III) is less basic than (II) because is closer and exerts a stronger electron withdrawing or -effect.