The molecular mass of hydrogen peroxide is $34$. What is the unit of molar mass?

Hydrogen peroxide in its reaction with $KIO_4$ and $NH_2OH$ respectively,is acting as a

$1 \ mL$ of $H_2O_2$ solution gives $10 \ mL$ of $O_2$ at $NTP$. It is ................ vol. $H_2O_2$.

Based on the given reaction scheme,identify which of the following statements is $CORRECT$?
$C + A \rightarrow B_2H_6 + B + H_2$
$B_2H_6 + NaH \rightarrow C$
$A + Na_2S_2O_3 \rightarrow B + Na_2S_4O_6$

Which of the following equations depicts the oxidizing nature of $H_{2}O_{2}$?

Describe the preparation of Hydrogen peroxide and write its physical properties.