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To what does the law of definite proportions apply?

Answer and explanation

Correct answer: Pure compound

The law of definite proportions applies to pure compounds. In a pure compound, the constituent elements are always present in a fixed ratio by mass; for example, hydrogen and oxygen occur in water in a fixed mass ratio. In mixtures and solutions, the proportions of components can vary, so the law does not apply to them. Exam tip: a fixed composition indicates a pure compound.

Related tags

Law Of Definite ProportionsPure CompoundsChemical CombinationFixed CompositionClass 11 ChemistryLaws Of Chemical CombinationSome Basic Concepts Of ChemistryChemistry

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