The final product $C$ in the following series of reactions is:

Predict the reagents or products $(1)$ to $(5)$ in the following reaction sequence:
$p-Nitrotoluene$ $\xrightarrow{(1)} p-Toluidine$ $\xrightarrow{(CH_3CO)_2O/\text{Pyridine}} p-Acetotoluidide$ $\xrightarrow{HNO_3/H_2SO_4} (2)$ $\xrightarrow{(3)} (4)$ $\xrightarrow{(5)} 3-Nitrotoluene$

In the following compounds,the decreasing order of basic strength will be:

In the reactions given below,
$R-Cl \xrightarrow{(i)\, KCN, (ii)\, LiAlH_4}$ Product $A$
$R-Cl \xrightarrow{(i)\, AgCN, (ii)\, LiAlH_4}$ Product $B$
the compounds $A$ and $B$ are

The reaction of aniline with chloroform and alcoholic $KOH$ yields .....

Among the following compounds nitrobenzene,benzene,aniline and phenol,the strongest basic behaviour in acid medium is exhibited by