\( 100 \mathrm{~cm}^{3} \) of a given sample of \( \mathrm{H}_{2} \mathrm{O}_{2} \) is labelled ...

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\( 100 \mathrm{~cm}^{3} \) of a given sample of \( \mathrm{H}_{2} \mathrm{O}_{2} \) is labelled as 20 volumes. Its percentage strength is:
(a) \( 10 \%(\mathrm{~W} / \mathrm{V}) \mathrm{H}_{2} \mathrm{O}_{2} \)
(b) \( 90 \%(\mathrm{~W} / \mathrm{V}) \mathrm{H}_{2} \mathrm{O}_{2} \)
(c) \( 6 \%(\mathrm{~W} / \mathrm{V}) \mathrm{H}_{2} \mathrm{O}_{2} \)
(d) \( 12 \%(\mathrm{~W} / \mathrm{V}) \mathrm{H}_{2} \mathrm{O}_{2} \)
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