# State the law of multiple proportions

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I. State the law of multiple proportions

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When two elements A and B form more than one compounds, the masses of element B that combine with a given mass of A are always in the ratio of small whole numbers  this is known as  law of multiple proportions .

For example,  Hydrogen combines with oxygen to form two compounds, namely water and hydrogen peroxide.

Here, it is found that, the two masses of oxygen i.e. 16 g and 32 g which combine with a fixed mass of hydrogen (2g) are in the ratio of small whole numbers, i. e. 16:32 or 1:2.