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In two compounds fixed 10 grams A combines with 18 grams and 54 grams B. What is the simple ratio of B?

Answer and explanation

Correct answer: 1:3

The mass of A is fixed at 10 g in both compounds, so compare the masses of B: 18:54. Dividing both terms by 18 gives 1:3. The ratio 3:1 is the reverse ratio, so it is not correct. Exam tip: reduce a ratio to its simplest form 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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