When white phosphorus reacts with caustic soda $(NaOH)$,$PH_3$ and $NaH_2PO_2$ are formed. This reaction is an example of what?

Which of the following ionic or molecular species does not disproportionate in water at room temperature?

From the given reactions,identify the disproportionation reaction:
$(i) \ Cl_{2(g)} + 2KI_{(aq)} \longrightarrow 2KCl_{(aq)} + I_{2(s)}$
$(ii) \ Cl_{2(g)} + 2OH^{-}_{(aq)} \longrightarrow ClO^{-}_{(aq)} + Cl^{-}_{(aq)} + H_2O_{(l)}$
$(iii) \ Mg_{(s)} + 2HCl_{(aq)} \longrightarrow MgCl_{2(aq)} + H_{2(g)}$
$(iv) \ 2H_2O_{2(aq)} \longrightarrow 2H_2O_{(l)} + O_{2(g)}$

Assign $A, B, C, D$ from the given type of reaction.
$I_2 + 2NaOH \longrightarrow NaI + NaOI + H_2O$

$1 \ mole$ of $MnO_4^{2-}$ in neutral aqueous medium disproportionates to:

When $Cl_2$ gas is passed through a hot and concentrated solution of $KOH$,which of the following compounds is formed?