$H_2SO_4$ can be dried by :

Hydrogen peroxide is stored away from light because it can get decomposed when exposed to light as:

The bond angle $H-O-O$ in $H_2O_2$ in the gaseous phase is (in $^{\circ}$)

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 $3.03\% \ (w/v) \ H_2O_2$.

What is the gas liberated when alkaline formaldehyde solution is treated with $H_2 O_2$?

How will you concentrate $H_2O_2$? Show differences between structures of $H_2O$ and $H_2O_2$ by drawing their spatial structures. Also, mention three important uses of $H_2O_2$.