# The % of by weight of hydrogen $H_2O_2$ is

$(a)\;50\qquad(b)\;25\qquad(c)\;6.25\qquad(d)\;5.88$

Mwt of $H_2O_2$ =34gm
$\Rightarrow \large\frac{2}{34}$$\times 100=5.88$
Hence (d) is the correct answer.