The electrolytic reduction of nitrobenzene in a strongly acidic medium produces:

Which one of the following compounds when heated with $KOH$ and a primary amine gives the carbylamine test?

Benzylamine is a stronger base than aniline because

Choose the correct order of basicity of the following compounds in the aqueous phase:
$(A)$ $(C_2H_5)_2NH$
$(B)$ $C_2H_5NH_2$
$(C)$ $NH_3$
$(D)$ $C_6H_5NH_2$

Arrange the following in the order of decreasing basicity:

$I. RN=CHR^1$

$II. RC \equiv N$

$III. RNH_2$

Which of the following amines is most basic in nature in the aqueous phase?