Isomerisation of ${\mathrm{CH}}_3\mathrm{NC}$ to ${\mathrm{CH}}_3\mathrm{CN}$ is a prototypical reaction.

The major products $\mathrm{A}$ and $\mathrm{B}$ in the following reactions are

Ethyl isocyanide on hydrolysis in acidic medium gives methylamine salt and ethanoic acid.

Draw the structure(s) of the functional isomer(s) of ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{NC}$?

Benzyl amine cannot be prepared by

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$