What product is formed when benzamide is reacted with $POCl_3$?

In the reaction sequence $Y$ is $CH_3CO_2H$ $\xrightarrow[(2) \Delta]{(1) NH_3} P$ $\xrightarrow{Br_2 / NaOH} Y$

The correct order of basicity of the following compounds is

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: Aniline on nitration yields ortho,meta and para nitro derivatives of aniline.
Reason $R$: Nitrating mixture is a strong acidic mixture.
In the light of the above statements,choose the correct answer from the options given below.

Benzylamine is a stronger base than aniline because

The most basic $'N'$ atom in the following molecule is: