Which one of the following compounds on reduction will not give a primary amine?

What is produced when aniline is heated with chloroform and alcoholic $KOH$?

Which of the following amines has the lowest $pK_{b}$ value?

Which one of the following compounds undergoes bromination of its aromatic ring (electrophilic aromatic substitution) at the fastest rate?

$A$ $\xrightarrow{H_2NOH} B$ $\xrightarrow{\text{reduction}} C$ $\xrightarrow{NOCl} CH_3CH_2Cl$. What are $A$ and $C$ in the given reaction sequence?

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