Describe the preparation of chloroform from methane.

Which substance is added in chloroform before the use of it as anaesthetic?

Predict the product:

${\mathrm{CHCl}}_3+{\mathrm{O}}_2\stackrel{\mathrm{sunlight}}{\to }$

Identify the compound $\mathrm{X}$ in the following reaction.

 ${\mathrm{CH}}_3{\mathrm{NO}}_2\underset{ \mathrm{Excess}}{\overset{{\mathrm{Cl}}_2/\mathrm{NaOH}}{\to }}\mathrm{X}$

Chloroform is obtained by heating _____ with bleaching powder and water.(acetone/propanone)

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 $100\}$