Air is a gas solution where oxygen is the solvent. True or False

It makes little difference which we call the solute and which the solvent. USUALLY we call the smaller amount the solute and the larger amount the solvent. The question is a not a very good one.

False. Air is actually a mixture of gases, not a solution. It consists of mainly nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases such as argon, carbon dioxide, and various pollutants. In a solution, such as saltwater, there is a solute dissolved in a solvent. In the case of air, there is no solute dissolved in a solvent, so it cannot be considered a solution.