Gabriel phthalimide synthesis is used for the preparation of which of the following?

Select the reagents that reduce nitriles to primary amines:
$A$. $(i) \text{LiAlH}_4$; $(ii) \text{H}_2\text{O}$
$B$. $\text{Sn} + \text{HCl}$
$C$. $\text{H}_2/\text{Ni}$
$D$. $\text{Na(Hg)}/\text{C}_2\text{H}_5\text{OH}$
$E$. $\text{Br}_2/\text{aq. NaOH}$
Choose the correct answer from the options given below:

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

Which of the following gives a primary amine on reduction?

Aniline is not the major product in one of the following reactions. Identify that reaction.

Explain the method of preparation for amine compounds by the reduction of nitro compounds.