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

In the following sequence of reactions, the gaseous species $\mathrm{A}\text{,} \mathrm{B}\text{,} \mathrm{D}\text{,} \mathrm{E}$, respectively, are

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.

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