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Question

The volume of perhydrol which on decomposition gives 1.5 lit of O2 gas at STP is:

A
25 ml
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B
15 ml
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C
10 ml
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D
20 ml
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Solution

The correct option is A 15 ml
As, it is a perhydrol sample, 1 ml of H2O2 would give 100 ml of O2 at room temperature. Thus, 1.5 L of O2 would be given by 15 ml of H2O2.

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