One ml of H2O2 solution gives 50 ml of O2 at NTP, so it is:
10 vol
25 vol
50 vol
100 vol
A
100 vol
B
10 vol
C
50 vol
D
25 vol
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Solution
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1 ml of hydrogen peroxide gives 50 ml of oxygen at NTP means, 50 volume hydrogen peroxide.
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