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Pure water obtained from different sources always contains hydrogen and oxygen in the same mass ratio. Which law does this illustrate?

Answer and explanation

Correct answer: Law of definite proportions

The law of definite proportions states that a pure compound always has its elements in a fixed mass ratio. In water, H:O = 2:16 = 1:8. Exam tip: choose multiple proportions only when two different compounds are compared.

Related tags

Laws Of Chemical CombinationDefinite ProportionsChemical CompositionWaterClass 11 ChemistrySome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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