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Question

In water H2O and hydrogen peroxide H2O2, the masses of oxygen which combine with fixed mass of hydrogen bear simple whole number ratio i.e. 1 : 2. This is illustration of:

A
law of definite proportions
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B
law of multiple proportions
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C
gay lussac's law
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D
avagadro's law
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Solution

The correct option is B law of multiple proportions
When two elements combine together to form more than one compound, then the mass of one element which combines with the fixed mass of another element will be a small whole number.
Since, where the oxygen is common between the given compound and it forms whole number ratio, thus it is following a law of multiple proportions.

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