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

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

Can you answer this question?

Mwt of $H_2O_2$ =34gm
$\Rightarrow \large\frac{2}{34}$$\times 100=5.88$
Hence (d) is the correct answer.
answered Jan 23, 2014