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Question

# Carbon and oxygen forms two compounds. Carbon content in one of them is 42.9% while in the other is 27.3%. The given data is in support with:

A
Law of definite proportions
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B
Law of reciprocal proportions
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C
Law of multiple proportion
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D
Law of conservation of mass
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Solution

## The correct option is C Law of multiple proportionThe above example illustrates the law of multiple proportions:If carbon constitutes 42.9% then Oxygen constitutes 57.1%(100−42.7)Then, 1 gram of oxygen constitutes 42.957.1=0.79 gram of carbon.In the second compound, oxygen constitutes 72.3 gram (100−27.3)Then 1 gm of oxygen constitutes 27.37207=0.375 gram of carbon.The ratio of carbon combining in two compounds with a fixed weight of oxygen is 0.79:0.375 is 2:1. (simple ratio)Hence, option C is correct.

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