In which of the following the nitration will be most easy?

Which of the following undergoes nitration most easily?

Which of the following undergoes nitration most easily?

Under identical conditons which of the following pair will be most easy to separate by diffusion process ?

Which of the following will undergo nitration most easily? Why? Benzene, m-Dinitrobenzene, toluene.

In which of the following ink silver nitrate is used ?

Which one of the following undergoes nitration reactions most readily?