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If a small amount of oxygen is uniformly mixed with nitrogen, what type of solution is it?

Answer and explanation

Correct answer: Gas in gas

The governing concept is classification by the states of solute and solvent. Oxygen is present in the smaller amount, so it is the gaseous solute. Nitrogen is also a gas and is the main medium, so it acts as the gaseous solvent. A uniform mixture of a gaseous solute in a gaseous solvent is therefore a gas-in-gas solution, making B correct. A requires a liquid solvent, C a solid solvent, and D a liquid solute, none of which is present.

Related tags

Gas In GasOxygen NitrogenSolution ClassificationClass 9 ScienceSolutionsExploring Mixtures And Their SeparationScienceClass 9 Mcq

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