$RNH_2$ reacts with $C_6H_5SO_2Cl$ (Hinsberg reagent) in aqueous $KOH$ to give a clear solution. On acidification,a precipitate is obtained which is due to the formation of:

What is the nature of an aqueous solution of methylamine?

The correct order of base strength in benzene as a solvent for the given amines is:
$I: CH_3CH_2NH_2$
$II: (CH_3CH_2)_2NH$
$III: (CH_3CH_2)_3N$

Given below are two statements:
Statement-$I$: In Hofmann degradation reaction,the migration of only an alkyl group takes place from carbonyl carbon of the amide to the nitrogen atom.
Statement-$II$: The group is migrated in Hofmann degradation reaction to an electron-deficient nitrogen atom.
In the light of the above statements,choose the most appropriate answer from the options given below:

The basicity of aniline is weaker in comparison to that of methylamine due to

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