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A student changed the ratio 2:4 into 1:2. What correct process is this?

Answer and explanation

Correct answer: Simplifying the ratio

The governing mathematical concept is simplifying a ratio by dividing both terms by their greatest common factor. In 2:4, the greatest common factor is 2. Dividing each term by 2 gives 2 ÷ 2 : 4 ÷ 2 = 1:2. The relationship represented by the ratio has not changed; only its numbers have been written in the smallest whole-number form. Therefore, option A is correct. The process does not destroy mass, create a gas, or change a compound into a mixture. It is simply a numerical representation of the same relative quantities. In chemistry, reducing ratios to their simplest whole-number form is useful when expressing elemental composition or deriving an empirical formula, provided all terms are divided by the same nonzero factor.

Related tags

ChemistryRatiosSimplest Whole-Number RatioLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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