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A compound has 7 grams A and 21 grams B. What is the simple ratio A:B?

Answer and explanation

Correct answer: 1:3

The ratio A:B is 7:21. Dividing both terms by their highest common factor, 7, gives 1:3. Although 7:21 represents the same ratio, it is not in simplest form. Exam tip: simplify a ratio by dividing both terms by their HCF.

Related tags

Chemical CombinationRatioSimplest RatioStoichiometryClass 11 ChemistryLaws Of Chemical CombinationSome Basic Concepts Of ChemistryChemistry

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