Match the following

Compound	Uses
(i)${\mathrm{CCl}}_4$	(p) Refrigerator and AC
(ii)${\mathrm{CH}}_2{\mathrm{Cl}}_2$	(q) Non biodegradable insecticide
(iii) Freons	(r) Fire Extinguisher
(iv) DDT	(s) Paint Removal

 

How many $\mathrm{\sigma }$ and $\mathrm{\pi }$ bonds are present in the structure of D.D.T respectively?

Which substance is used to extinguish fire in substances like oil, fat and petrol?

Predict the product:

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

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