Two samples X and Y of a pure substance obtained by two different methods contain elements P and Q. Substance X has a mass of 2.25 g and contains 0.90 g of 0. Substance Y is made up of 60% P and 40% 0 by weight. This is an illustration of

Gay-Lussac's law of combining volumes.

Two samples X and Y of a pure substance obtained by two different meth

1.	Two samples X and Y of a pure substance obtained by two different methods contain elements P and Q. Substance X has a mass of 2.25 g and contains 0.90 g of 0. Substance Y is made up of 60% P and 40% 0 by weight. This is an illustration of
A.	Law of multiple proportions
B.	Law of constant proportions
C.	Law of reciprocal proportions
D.	Gay-Lussac's law of combining volumes.
Answer» C. Law of reciprocal proportions

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Two samples X and Y of a pure substance obtained by two different methods contain elements P and Q. Substance X has a mass of 2.25 g and contains 0.90 g of 0. Substance Y is made up of 60% P and 40% 0 by weight. This is an illustration of

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