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Highly selective Backlog Qs for JEE MainChemistrySome Basic Concepts of Chemistry

Pure water can be obtained from various sources, but it always contains hydrogen and oxygen, combined in a ratio of 1   :   8 by weight. This is an example of ___________.

Options

  1. ALaw of conservation of mass
  2. BAvogadro's law
  3. CLaw of definite composition
  4. DGay Lussac's law

Correct answer

C. Law of definite composition

Step-by-step solution

According to law of definite proportion, the compound always contains element in a fixed ratio of their mass. In water, the mass ratio of hydrogen and oxygen is always fixed whether it is obtained from sea, lake, pond, river, etc. The composition of both hydrogen and oxygen never changes.

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