In an experiment, 2.4 g of iron oxide on reduction with hydrogen gave 1.68 g of iron. In another experiment, 2.9 g of iron oxide gave 2.09 g of iron on reduction. Which law is illustrated from the above data?

Question

In an experiment, 2.4 g of iron oxide on reduction with hydrogen gave 1.68 g of iron. In another experiment, 2.9 g of iron oxide gave 2.09 g of iron on reduction. Which law is illustrated from the above data?, Law of constant proportions, Law of multiple proportions, Law of conservation of mass, Law of reciprocal proportions

MARKS App · Accepted Answer

In first experiment, 24 g of iron oxide gave 1.68 g of iron. Mass of iron oxide = 2.4 g Mass of iron = 1.68 g Mass of oxygen = 2.4 - 1.68 = 0.72 Ratio of masses of iron and oxygen = 1.68 0.72 = 7 : 3 In second experiment, Mass of iron oxide = 2.9 g Mass of iron = 2.09 g Mass of oxygen = 2.9 - 2.09 = 0.81 Ratio of masses of iron and oxygen = 2.09 0.81 = 7 : 3

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