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In two compounds fixed 13 grams A combines with 16 grams and 48 grams B. What is the ratio of B?

Answer and explanation

Correct answer: 1:3

The mass of A is the same, 13 g, in both compounds. Therefore, the required ratio of the masses of B is 16:48. Dividing both terms by 16 gives 1:3. The ratio 3:1 is the reverse ratio, so it is not correct. Exam tip: when the mass of one element is fixed, reduce the masses of the other element to their simplest ratio.

Related tags

ChemistryLaw Of Multiple ProportionsChemical CombinationMass RatioClass 11Laws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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