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(B) The strength of $H_2O_2$ in terms of volume is related to percentage strength by the formula: $	ext{Strength (\%)} = \frac{	ext{Volume strength}

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$3$

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(B) The strength of $H_2O_2$ in terms of volume is related to percentage strength by the formula: $	ext{Strength (\%)} = \frac{	ext{Volume strength}}{5.6}$.Given volume strength is $10$ volume.Therefore,$	ext{Percentage strength} = \frac{10}{5.6} \approx 1.785\%$.However,using the standard conversion factor where $1$ volume of $H_2O_2$ corresponds to approximately $0.3035\%$ strength,$10$ volume corresponds to $10 	imes 0.3035 = 3.035\%$.Thus,the percentage strength is nearly $3\%$.

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

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