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Question

The strength of 20 volume H2O2 g/litre is:

A
13.6
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B
60.7
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C
160
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D
20.2
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Solution

The correct option is B 60.7
2H2O22H2O+O2 2X 34 22.4Mass of H2O2 which liberates 20 mL of O2=(2×34×20)/22.4=60.71

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