Chemistry
Grade-8
Easy

Question

The law of constant proportion is also called as:

  1. The law of definite proportion
  2. Law of fixed proportion
  3. Law of continuous proportion
  4. Law of indefinite proportion

hintHint:

According to this law, a water molecules will always have 2 atoms of hydrogen and 1 atom of oxygen at all times. This means the elements in a compound are in a fixed ratio.

The correct answer is: The law of definite proportion


    • The law of definite proportions is often called Proust's law or the law of definite proportions. The law of constant proportions states that a compound is composed of a constant mass proportion of elements.
    • This means that regardless of the source, a pure sample of a compound will always consist of the same elements present in the same mass ratios.

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