In which case is an alkylamine not formed?

Indicate which nitrogen compound amongst the following would undergo Hofmann's reaction (i.e.,reaction with $Br_2$ and strong $KOH$) to furnish the primary amine $(R-NH_2)$.

The correct sequence of reactions to be performed to convert benzene into $m$-bromoaniline is

Which of the following reaction/s does not yield an amine?
$I. R-X + NH_3 \xrightarrow{\Delta} \text{(alc)}$
$II. R-C \equiv N \xrightarrow{H_2/Ni \text{ or } Na(Hg)/C_2H_5OH}$
$III. R-C \equiv N + H_2O \xrightarrow{H^+}$
$IV. R-CONH_2 + 4[H] \xrightarrow{i) LiAlH_4, ii) H_3O^+}$

What is $B$ in the given reaction?
$C_2H_5Br \xrightarrow{\text{excess } NH_3} A \xleftarrow{Br_2/KOH} B$

Which of the following gives a primary amine on reduction?