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In two compounds fixed 2 grams A combines with 3 grams and 12 grams B. What is the simple ratio of B?

Answer and explanation

Correct answer: 1:4

For the fixed 2 g of A, the masses of B are 3 g and 12 g. Thus, their ratio is 3:12. Dividing both terms by 3 gives the simplest ratio, 1:4. Option 4:1 is the reverse order, so it is incorrect. Exam tip: write ratios in the order given and reduce both terms by their highest common factor.

Related tags

ChemistryChemical CombinationLaws Of Chemical CombinationMultiple ProportionsRatioClass 11Some Basic Concepts Of ChemistryClass 11 Mcq

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