Ammonium dichromate on heating gives:

$Cl_2 + NaOH$ (dil. and cold) $\longrightarrow A + B + H_2O$. The anions of $A$ and $B$ are respectively . . . . . .

Which of the following are disproportionation reactions?
$(A)$ $Cl_2 + 2 NaOH \rightarrow NaCl + NaOCl + H_2O$
$(B)$ $2 H_2O_2 \rightarrow 2 H_2O + O_2$
$(C)$ $2 KMnO_4 \rightarrow K_2MnO_4 + MnO_2 + O_2$
$(D)$ $3 MnO_4^{2-} + 4 H^+ \rightarrow 2 MnO_4^- + MnO_2 + 2 H_2O$

In the following reaction $P_4 + 3NaOH + 3H_2O \to PH_3 + 3NaH_2PO_2$,what happens to phosphorus?

The species given below that does $NOT$ show disproportionation reaction is :

In the following reaction,assign the state for the underlined atom in the product of complete hydrolysis at $R.T.$:
$\underline{Cl}O_2 + H_2O \longrightarrow HClO_2 + HClO_3$