Which of the following amines forms a clear solution when treated with benzene sulphonyl chloride and excess of potassium hydroxide?

How can you distinguish between aniline and methylamine?

Which of the following amines does not give the isocyanide test?

Carbylamine test is performed by heating alcoholic $KOH$ with:

$A$ nitrogen-containing organic compound,on heating with chloroform and alcoholic $KOH$,evolved a very unpleasant-smelling vapor. The compound could be:

Given below are two statements:
Statement $I$: All the following compounds react with $p$-toluenesulfonyl chloride:
$C_6H_5NH_2$
$(C_6H_5)_2NH$
$(C_6H_5)_3N$
Statement $II$: Their products in the above reaction are soluble in aqueous $NaOH$.
In the light of the above statements,choose the correct answer from the options given below.