Which of the following is the common name for peroxymonosulfuric acid?

In basic medium,$H_{2}O_{2}$ exhibits which of the following reactions?
$A$. $Mn^{2+} \rightarrow Mn^{4+}$
$B$. $I_{2} \rightarrow I^{-}$
$C$. $PbS \rightarrow PbSO_{4}$
Choose the most appropriate answer from the options given below:

The oxide that gives $H_2O_2$ on treatment with a dilute acid is

In which of the following reactions,$H_2O_2$ acts as a reducing reagent?

With reference to the redox properties of hydrogen peroxide $(H_2O_2)$,which of these reactions are feasible?
$(I)$ $2Fe^{2+} + 2H^{+} + H_2O_2 \longrightarrow 2Fe^{3+} + 2H_2O$
$(II)$ $2MnO_4^{-} + 6H^{+} + 5H_2O_2 \longrightarrow 2Mn^{2+} + 8H_2O + 5O_2$
$(III)$ $2Fe^{2+} + H_2O_2 \longrightarrow 2Fe^{3+} + 2OH^{-}$
$(IV)$ $2MnO_4^{-} + 3H_2O_2 \longrightarrow 2MnO_2 + 2H_2O + 3O_2 + 2OH^{-}$

When $CO_2$ is bubbled through a solution of barium peroxide in water: