In the reaction $3Br_2 + 6CO_3^{2-} + 3H_2O \to 5Br^- + BrO_3^- + 6HCO_3^-$,which of the following is true?

In the following reaction,$4P + 3KOH + 3H_2O \to 3KH_2PO_2 + PH_3$,what happens to phosphorus $(P)$?

The compound that cannot act both as an oxidising and reducing agent is:

For the given reaction $Cl_2 + OH^{-} \to ClO^{-} + Cl^{-}$,select the correct sequence of $T$ (True) and $F$ (False) for the following statements:
$(1)$ The given reaction occurs in a basic medium.
$(2)$ $Cl_2$ undergoes both oxidation and reduction.
$(3)$ The reaction is a disproportionation reaction.
$(4)$ The oxidation state of $Cl$ in $ClO^{-}$ is $+1$.

In the following reaction,assign the state for the underlined atom in the products of complete hydrolysis at $R.T.$:
$\underline{N_2}O_4 + H_2O \longrightarrow HNO_3 + HNO_2$

When $H_2S$ is passed through $Hg_2^{2+}$ solution,the products obtained are: