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

In the following sequence of reactions,the compound $A$ is:
$A$ $\xrightarrow{\text{Reduction}} B$ $\xrightarrow{HNO_2} CH_3CH_2OH$

Which of the following gives a primary amine on reduction?

Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?

Reduction of nitroalkanes yields

Predict the major product $P$ in the following sequence of reactions$-$
$(i)$ $HBr$,benzoyl peroxide
(ii) $KCN$
(iii) $Na(Hg)/C_2H_5OH$
[Image: $1-$methylcyclopentene reacting with the above reagents to form $P$]