Which metal oxide among the following gives $H_2O_2$ on treatment with dilute acid?

Decolourisation of acidified potassium permanganate occurs when $H_2O_2$ is added to it,this is due to

Calculate the normality of $10$ volume $H_2O_2$ solution.

$A$ commercial sample of hydrogen peroxide is labeled as $10$ volume. Its percentage concentration is approximately ............... $\%$.

The volume strength of $1.5 \ N \ H_2O_2$ solution is

The reaction of $H_{2}O_{2}$ with potassium permanganate in acidic medium leads to the formation of mainly.