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In two different experiments, copper oxide was obtained from copper. The ratio of mass of copper and mass of oxygen foun

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Question of Exercise 4

Atom and Molecule of Class 9

Question
In two different experiments, copper oxide was obtained from copper. The ratio of mass of copper and mass of oxygen found in the two experiments are same. They are in the ratio of 4 : 1. The experiments were in accordance with ___.

Answer

Option 1 law of conervation of energy

Option 2 Law of multiple proportions

Option 3 Law of constant proportions

Option 4 Law of conservation of mass

Answer:

Law of constant proportions

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