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Laws of Definite Proportions, Multiple Proportions

1.2375 g of c...

Question

1.2375 g of cupric oxide on being heated in a current of hydrogen gave 0.9322 g of the metal In another experiment 0.9369 g of pure copper was dissolved in nitric acid Excess of acid evaporated and the residue has ignited The weight of the cupric oxide left was 1.2469 g. Which law of chemical combination is shown by the above results?

A

Law of constant proportions

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B

Law of multiple proportions

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C

Law of conservation of mass

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D

Law of constant volumes

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Solution

The correct option is A Law of multiple proportions
law of multiple proportion is shown as copper reacts with two different compounds .

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Laws of Definite Proportions, Multiple Proportions

Standard XII Chemistry

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