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The percentage of copper and oxygen in samples of CuO obtained by different methods were found to be the same.

This illustrates the law of

Option: 1

Constant proportions

Option: 2

Conservation of mass    

Option: 3

Multiple proportions

Option: 4

Reciprocal proportions

Answers (1)


Irrespective of the source, a compound will have the same composition of its constituent elements. This is the statement of the Law of definite or constant proportions.

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Suraj Bhandari

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