$C_2H_5Br$ $\xrightarrow{AgCN} X$ $\xrightarrow{Reduction} Y$. Here,$Y$ is:

Which of the following compounds reacts with chloroform and a base to form phenyl isocyanide?

Consider the following four compounds $I, II, III,$ and $IV$.
Choose the correct statement$(s)$.
$(A)$ The order of basicity is $II > I > III > IV$.
$(B)$ The magnitude of $pK_b$ difference between $I$ and $II$ is more than that between $III$ and $IV$.
$(C)$ Resonance effect is more in $III$ than in $IV$.
$(D)$ Steric effect makes compound $IV$ more basic than $III$.

Which among the following compounds is a secondary amine?

Alkyl benzene sulphonates can be used as detergents in hard water,unlike soaps,as

When ethyl amine is heated with chloroform and alcoholic $KOH$,a compound with an offensive smell is obtained. This compound is