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In which question is the law of multiple proportions most likely to apply?

Answer and explanation

Correct answer: Comparison of two compounds of carbon and oxygen

The law of multiple proportions is tested by comparing two different compounds made from the same two elements. Carbon and oxygen form several compounds, including carbon monoxide and carbon dioxide. For a fixed mass of carbon, the masses of oxygen in these compounds are in a simple whole-number ratio, such as 1:2, which is the defining observation of the law. Thus option A provides the required comparison. Testing the purity of one water sample concerns composition or analysis, not multiple proportions. The mass of a vessel and the lustre of a metal do not involve two compounds formed by the same pair of elements.

Related tags

ChemistryMultiple ProportionsCarbon Oxygen CompoundsLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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