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Question

The volume of O2 liberated at STP from 20 ml of 10V H2O2 is

A
20 ml
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B
10 ml
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C
200 ml
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D
100 ml
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Solution

The correct option is C 200 ml
(10V) 1 mole H2O2 gives 10mlO2 (at STP)
20mlH2O2 gives - ?
20×10=200ml

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