Question:medium

1 mL of "x volume" H\(_2\)O\(_2\) solution on heating gives 20 mL of oxygen gas at STP. The (w/v) % corresponding to "x volume" of H\(_2\)O\(_2\) is

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Memorize the handy relationships for H\(_2\)O\(_2\) solutions: - Volume Strength = 11.2 \(\times\) Molarity - Volume Strength \(\approx\) 3.3 \(\times\) Normality - (w/v) % = Molarity \(\times\) Molar Mass / 10 \(\approx\) Molarity \(\times\) 3.4 - (w/v) % \(\approx\) Volume Strength / 3.3 Here, \(20 / 3.3 \approx 6.06%\).

Updated On: Mar 30, 2026

3.03
6.06
9.09
30.3

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The Correct Option is B

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