Question

explain the law of constant proportion with example and limitations
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Answer 1

Explanation:

The law does not hold true if the different isotopes of the element are involved in making chemical compound. the law is not applicable when elements combine in the same ratio but different compounds are formed. When an element exists in the form of different isotopes in its compounds, the law does not hold good.

Answer 2

Answer:

Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass.

limitations:

The law does not hold true if the different isotopes of the element are involved in making chemical compound. the law is not applicable when elements combine in the same ratio but different compounds are formed. When an element exists in the form of different isotopes in its compounds, the law does not hold good.

examples:

water, H2O, hydrogen, and oxygen are always present in the ratio of 1:8 by mass, whatever the method or source from which water is obtained.