Atomic hydrogen reacts with oxygen to give

The species that do not contain peroxide linkage are :-

Given below are two statements:
Statement $I$: Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.
Statement $II$: Density of hydrogen peroxide at $298 \ K$ is lower than that of $D_2O$.
In the light of the above statements,choose the correct answer from the options.

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

What product is formed when $I_2$ reacts with $H_2O_2$ in a basic medium?

Assertion : Anhydrous $BaO_2$ is used for preparing $H_2O_2$.
Reason : Hydrated $BaO_2$ is not available.