All the products formed in the oxidation of $NaBH_4$ by $I_2$ are

$O_2F_2$ is an unstable yellow-orange solid and $H_2O_2$ is a colourless liquid. Both have an $O-O$ bond. The $O-O$ bond length in $H_2O_2$ and $O_2F_2$ respectively is:

The compound$(s)$ which have $-O-O-$ bond$(s)$ is/are:

$A$ commercial sample of hydrogen peroxide is labelled as $10$ volume. Its percentage strength is nearly ............... $\%$

What is the approximate volume (in $mL$) of $10$ vol $H_2O_2$ solution that will react completely with $1 \ L$ of $0.02 \ M \ KMnO_4$ solution in acidic medium?

Calculate the percentage by mass of a $H_2O_2$ solution that is $67.2$ volume strength.