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Dusty air can be viewed as what?

Answer and explanation

Correct answer: Mixture of solid particles in a gas

The governing concept is the classification of a mixture according to the dispersed component and the dispersion medium. In dusty air, small solid dust particles are distributed through air, which is a gaseous medium. The amount of dust is not fixed, and the particles can often be removed by filtration or allowed to settle under gravity. These observations show that dusty air is not a pure substance with a fixed composition and is not a compound formed by chemical bonding in a definite ratio. It is also not a liquid-in-liquid system. Depending on particle size and concentration, it may show suspension or aerosol-like behaviour, but the essential description remains solid particles dispersed in a gas. Hence option A is correct.

Related tags

Dusty AirMixturesSuspensionAerosolNature Of MatterSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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