Ammonium dichromate on heating gives:

The main products $P$ and $Q$ of the following unbalanced disproportionation reaction are:
$Se_2Cl_2 \rightarrow P + Q$

Assign $A, B, C, D$ from the given type of reaction.
$Na_2S + H_2SO_4$ $(Conc.)$ $\longrightarrow S\downarrow + SO_2 + Na_2SO_4$

Among $P_4$,$S_8$ and $N_2$,the elements which undergo disproportionation when heated with $NaOH$ solution are:

White phosphorus reacts with caustic soda. The products are $PH_3$ and $NaH_2PO_2$. This reaction is an example of

The disproportionation of $MnO_{4}^{2-}$ in acidic medium results in the formation of two manganese compounds $A$ and $B$. If the oxidation state of $Mn$ in $B$ is smaller than that of $A$,then the spin-only magnetic moment $(\mu)$ value of $B$ in $BM$ is $.........$ (Nearest integer).