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Question

A commercial sample of H2O2 is labelled 10 volume. Its percentage strength is nearly

A
1%
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B
3%
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C
10%
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D
90%
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Solution

The correct option is B 3%
10 volumes of H2O2 is 3.035%,so 3.035 grams of H2O2 os present in 100 mL solution.
Hence option B is correct.

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