In the reaction,Aniline $\xrightarrow[\text{Dil. } HCl]{NaNO_2} P$ $\xrightarrow[NaOH]{\text{Phenol}} Q$,identify $Q$.

Consider the following reaction:
$C_6H_5NO_2$ $\xrightarrow{Sn/HCl} X$ $\xrightarrow{C_6H_5COCl} Y + HCl$
What is $Y$?

The order of decreasing nucleophilicity of the following is:

State True or False for the following statements:
$(i)$ Aniline becomes polar in its resonance structure.
$(ii)$ The separation of charge occurs in the resonance structure of aniline.
$(iii)$ The $NH_2$ group of aniline is electron donating.
$(iv)$ The $NH_2$ group of aniline is electron attracting in resonance $(-R)$.

Arrange the following compounds in their correct order of $pK_b$ values.

Identify the products $y$ and $x$ in the following reaction sequence:
$C_6H_5CONH_2 \xrightarrow{NaOBr} y$
$C_6H_5CONH_2 \xrightarrow[(ii) H_3O^+]{(i) C_6H_5SO_2Cl / py, \Delta} x$