Methane reacts with excess of in presence of sunlight to undergo multiple substitution reactions to form chloromethane, dichloromethane, trichloromethane and tetrachloromethane respectively.

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 $100\}$