What volume of O 2 measured at standard conditions will be formed by the action of 100 mL of 0.5 K M n O 4 on hydrogen peroxide in an acidic solution?

Question

What volume of O 2 measured at standard conditions will be formed by the action of 100 mL of 0.5 K M n O 4 on hydrogen peroxide in an acidic solution?, 0.12 litre, 0.28 litre, 0.56 litre, 1.12 litre

MARKS App · Accepted Answer

Here H 2 O 2 on reaction with K M n O 4 gives O 2 so Meq. of O 2 = M e q of K M n O 4 = 100 × 0.5 w 8 × 1000 = 50 (equivalent weight of oxygen is 8) So w O 2 = 0.4 g So V O 2 = 22.4 × 0.4 32 = 0.28 litre.

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