MCQ
The pesticide $DDT$ slowly changes to
- A$CCl_3-CHO$ and chlorobenzene
- B$p, p'-$ Dichlorodiphenylethene
- C$p, p'-$ Dichlorodiphenyldichloroethane
- ✓$p, p'-$ Dichlorodiphenyldichloroethene
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(The freezing point depression constant for water $=2\; \mathrm{K}\; \mathrm{kg} \;\mathrm{mol}^{-1}$ )
$CO(g) + Cl_2(g) \rightleftharpoons COCl_2(g)$
The reaction carried out in a $500\,mL$ flask. At equilibrium, $0.3\,mol$ of phosgene, $0.1\, mol$ of $CO,$ and $0.1\,mol$ of $Cl_2$ are present. The equilibrium constant of the reaction is

| Column-। | Column-।I |
| (a) o-Ethylanisole | i.![]() |
| (b) p-Nitroaniline | ii. ![]() |
| (c) 2,3 - Dibromo-1- phenylpentane | iii. ![]() |
| (d) 4-Ethyl-1-fluoro-2- nitrobenzene | iv. ![]() |