$C_2H_5Br$ $\xrightarrow{AgCN} X$ $\xrightarrow{\text{Reduction}} Y$. Here $Y$ is

The conversion of propan$-1-$ol to $n-$butylamine involves the sequential addition of reagents. The correct sequential order of reagents is:

The starting material that produces pentanamine by the Hoffmann bromamide reaction is

$CH_3CN \xrightarrow{Na + C_2H_5OH} x$. The compound $x$ is

Identify the major organic product formed from the following reaction sequence:
$CH_3-CH(CH_3)-CO-CH_3 \xrightarrow[(ii) LiAlH_4, (iii) H_2O]{(i) CH_3NH_2} \text{?}$

Given below are two statements,one is labeled as Assertion $(A)$ and other is labeled as Reason $(R).$
Assertion $(A):$ Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines.
Reason $(R) :$ Aryl halides do not undergo nucleophilic substitution reaction.
In the light of the above statements,choose the correct answer from the options given below.