Which of the following is known as 'Oxone'?

The volume strength of $8.9 \, M \, H_{2}O_{2}$ solution calculated at $273 \, K$ and $1 \, atm$ is.........
$(R = 0.0821 \, L \, atm \, K^{-1} \, mol^{-1})$ (rounded off to the nearest integer)

$Hydrogen$ $peroxide$ is reduced by:

Strength of a $H_2O_2$ solution is labelled as $1.79 \, N$. Its strength can also be expressed as closest to $... \, \text{volume}$.

$A$ commercial sample of $H_2O_2$ marked as $100$ volume hydrogen peroxide means:

Consider the following statements:
Statement-$I$: $H_2O_2$ acts as an oxidising as well as a reducing agent in both acidic and basic media.
Statement-$II$: $10 \ V \ H_2O_2$ sample means it contains $3.03\% \ (w/v) \ H_2O_2$.