When acetamide is treated with $NaOBr$,the product formed is

For the preparation of $p-$nitroiodobenzene from $p-$nitroaniline,the best method is

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

Identify $X$ and $Y$ in the following reactions:
$X \xrightarrow{H_2/Ni} CH_3CH_2CH_2NH_2 \xleftarrow{Br_2/NaOH} Y$

Gabriel's phthalimide synthesis is used for the preparation of

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 $(R-NH_2)$.