Reduction of nitrobenzene with zinc $(Zn)$ and ammonium chloride $(NH_4Cl)$ gives:

The increasing order of diazotisation of the following compounds is:

The product obtained by the electrolytic reduction of nitrobenzene in the presence of $H_2SO_4$ is:

Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with $HBF_4$. Which of the following conditions is correct about this reaction?

Nitration of aniline in a strong acidic medium also gives $m$-nitroaniline because

When chloroform is treated with a primary amine and $KOH$,what is the characteristic smell of the product formed?