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At same temperature pressure 20 litres gas A and 30 litres gas B combine. What is the simple volume ratio?

Answer and explanation

Correct answer: 2:3

The volume ratio of gas A to gas B is 20:30. Dividing both terms by their greatest common factor, 10, gives 2:3. Option 3:2 is a close distractor, but it reverses the order of the gases. Exam tip: write ratios in the order in which substances are given and reduce them to the simplest whole-number form.

Related tags

ChemistryChemical CombinationGas Volume RatioLaw Of Combining VolumesClass 11Laws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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