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Before applying which law should the same temperature and pressure of gases be checked?

Answer and explanation

Correct answer: Law of gaseous volumes

The governing concept is Gay-Lussac’s law of gaseous volumes. It states that when gases react, their volumes and the volume of any gaseous product are in simple whole-number ratios, provided all volumes are measured at the same temperature and pressure. Thus, checking identical conditions is essential before comparing gas volumes. Option B is correct. The law of conservation of mass concerns total mass, not gas-volume conditions. The law of definite proportions concerns a fixed composition of a compound, while the law of multiple proportions compares masses of elements in different compounds. Those laws do not specifically require the stated gas-volume condition.

Related tags

ChemistryLaws-Of-Chemical-CombinationGay-Lussac-LawClass-11Laws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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