MCQ
${H_3}P{O_2}\xrightarrow{\Delta }(X) + P{H_3}$ is
- ADehydration reaction
- BOxidation reaction
- ✓Disproportionation reaction
- DNone
$4 H _3 PO _3 \rightarrow 3 H _3 PO _4+ PH _3$
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$S + HNO_3 \rightarrow H_2SO_4 + 6NO_2 + 2H_2O$
$(1) Li < Be < B < C (IE_1)$
$(2) Li < Na < K < Rb < Cs$ (Reducing power in gaseous state)
$(3) Li^+ < Na^+ < K^+ < Rb^+ < Cs^+$ (Ionic mobility in aqueous solution)
$(4) S > Se > Te > O [EA]$
