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Under same conditions what is the simple ratio of 7 litres gas A and 21 litres gas B?

Answer and explanation

Correct answer: 1:3

The ratio of gas A to gas B is 7:21. Dividing both terms by their greatest common factor, 7, gives 1:3. Thus, for every 1 part of gas A, there are 3 parts of gas B. The ratio 3:1 represents the reverse order, so it is incorrect. Exam tip: reduce a ratio by dividing both terms by their greatest common factor.

Related tags

Chemical CombinationGas VolumesSimple RatioMole ConceptStoichiometryLaws Of Chemical CombinationSome Basic Concepts Of ChemistryChemistry

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