Q.
Which of the following statements illustrates the law of multiple proportions?
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Some Basic Concepts of Chemistry
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Solution:
In XO,50g of element combines with 50g of oxygen. ∴1g of element combines with 1g of oxygen.
In XO2,40g of element combines with 60g of oxygen. ∴1g of element combines with 1.5g of oxygen.
Thus, ratio of masses of oxygen which combines with 1g of element is 1:1.5 or 2:3. This is in accordance with the law of multiple proportions. In (b) the law of reciprocal proportions is followed. In (c) law of conservation of mass is followed while in (d) Avogadros law is followed.