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In two compounds, a fixed mass of 14 g of A combines with 22 g and 44 g of B, respectively. What is the simplest ratio of the masses of B?

Answer and explanation

Correct answer: 1:2

The governing concept is the law of multiple proportions. The mass of A is fixed at 14 g in both compounds, so it is not part of the final B-to-B comparison. The relevant ratio is therefore 22:44. The greatest common divisor of 22 and 44 is 22; dividing gives 22/22 : 44/22 = 1:2. Hence option C is correct. Option D repeats the given values without reducing them. Option B compares the fixed mass of A with a mass of B, which does not answer the question. Option A reverses the order and would correspond to 44:22. The unchanged mass of A is the condition that permits this comparison, not a number to include in the ratio.

Related tags

ChemistryLaw Of Multiple ProportionsRatio CalculationLaws Of Chemical CombinationClass 11 ChemistrySome Basic Concepts Of ChemistryClass 11 Mcq

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