MCQ
Chemical formula for the phosphorus molecule is
- A$P$
- ✓${P_4}$
- C${P_2}$
- D${P_5}$
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(Round off to the NearestInteger)
[Use:Atomicmasses:$Na:23.0\,u \mathrm{O}: 16.0 \,\mathrm{u} \quad \mathrm{H}: 1.0 \,\mathrm{u}$, Density of $\mathrm{H}_{2} \mathrm{O}: 1.0 \,\mathrm{~g} \,\mathrm{~cm}^{-3}$ ]
Reason : $Zn$ is deposited at anode, and $Cu$ is deposited at cathode.
| 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 |