When alkyl halide is boiled with a large excess of alcoholic ammonia,it forms:

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 $P$]

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

Identify $B$ in the following conversion: $CH_3-I$ $\xrightarrow{KCN} A$ $\xrightarrow{Na / C_2H_5OH} B$

Hofmann degradation is given by:

The total number of amines among the following which can be synthesized by Gabriel phthalimide synthesis is:
$(A)$ $(CH_3)_2CH-CH_2-NH_2$
$(B)$ $CH_3CH_2NH_2$
$(C)$ $C_6H_5-CH_2-NH_2$
$(D)$ $C_6H_5-NH_2$