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At the same temperature and pressure, 2 L of hydrogen reacts with 1 L of oxygen to form water vapour. If the water vapour occupies 2 L under those conditions, which law is illustrated by the volume ratio 2:1:2?

Answer and explanation

Correct answer: Law of gaseous volumes

The correct answer is A, the law of gaseous volumes. At the same temperature and pressure, the volumes of hydrogen, oxygen and water vapour are 2 L, 1 L and 2 L, giving the simple whole-number ratio 2:1:2.

Related tags

ChemistryLaws Of Chemical CombinationGaseous VolumesSome Basic Concepts Of ChemistryClass 11 Mcq

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