MCQ
The $C - H$ bond distance is the longest in
- A${C_2}{H_2}$
- B${C_2}{H_4}$
- ✓${C_2}{H_4}B{r_2}$
- D${C_6}{H_6}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

[Use: $\left.\mathrm{R}=8.3 \,\mathrm{~J} \,\mathrm{~mol}^{-1}\, \mathrm{~K}^{-1}\right]$
| Item $-I$ (Mixture) | Item $-II$ (Separation method) |
| $(a)$ $H_2O :$ Sugar | $p.$ Sublimation |
| $(b)$ $H_2O :$ Aniline | $q.$ Recrystallization |
| $(c)$ $H_2O :$ Toluene | $r.$ Stem distillation |
| $s.$ Differential extraction |