Hydrogen peroxide is used as

$H_{2}O_{2}$ is

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 $H_2O_2$.

What is the role of glycerol in the decomposition of $H_2O_2$?

The volume of oxygen liberated from $15 \, mL$ of $20$ volume $H_2O_2$ is ................ $mL$.

Compare the structures of $H_2O$ and $H_2O_2$.