Question

define and explain law of constant composition with suitable example. give it's limitations​

Answer 1

Answer:

In chemistry, the law of definite proportion, sometimes called Proust's law or the law of definite composition, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio and does not depend on its source and method of preparation.

Explanation:

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Answer 2

Answer:

Law of constant composition states that a given chemical compound always contain its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.

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