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In two compounds fixed 5 grams of A combines with 14 grams and 21 grams of B. What is the simple ratio of B masses?

Answer and explanation

Correct answer: 2:3

The mass of A is fixed at 5 g in both compounds, so compare the masses of B: \(14:21\). Dividing both terms by 7 gives \(2:3\). Although \(14:21\) represents the given masses, it is not in simplest form. Exam tip: reduce a ratio by dividing both terms by their highest common factor.

Related tags

ChemistryChemical CombinationMultiple ProportionsMass RatioClass 11Laws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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