MCQ
${P_4}\, + \,3NaOH\, + \,3{H_2}O\, \to \,3Na{H_2}P{O_2}\, + \,P{H_3}$ is an example of
- AInter molecular Redox reaction
- BIntra molecular Redox reaction
- ✓Disproportionation Redox reaction
- DNone of these

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| Column - $I$ | Column - $II$ |
| $(a)$ $XeF _{2}$ | $(i)$ Van Arkel method |
| $(b)$ $XeF _{4}$ | $(ii)$ Linear |
| $(c)$ $XeO _{3}$ | $(iii)$ Square pyramidal |
| $(d)$ $XeOF_{4}$ | $(iv)$ Pyramidal |

