Which of the following reactions can be used to prepare an amine from an amide?

When propanamide reacts with $Br_2$ and $NaOH$,which of the following compounds is formed?

How many primary amines are possible for the formula $C_4H_{11}N$?

Identify the major product $C$ formed in the following reaction sequence:
$CH_3-CH_2-CH_2-I$ $\xrightarrow{NaCN} A$ $\xrightarrow[\text{Partial hydrolysis}]{OH^-} B$ $\xrightarrow{NaOH/Br_2} C \text{ (major)}$

The compound $A$ when treated with $HNO_3$ (in presence of $H_2SO_4$) gives compound $B$,which is then reduced with $Sn$ and $HCl$ to aniline. The compound $A$ is

Which of the following compounds is $NOT$ obtained at any stage of Gabriel phthalimide synthesis?