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Which statement correctly differentiates air and smoke?

Answer and explanation

Correct answer: Air is a homogeneous solution of gases; smoke is dispersion of solid particles in gas

Clean air is treated as a homogeneous mixture of gases, with gases uniformly distributed. Smoke contains tiny solid particles, such as soot, dispersed through a gas; it is therefore a dispersion rather than an ordinary gas-gas true solution. Smoke is not necessarily pure and does not contain only liquid particles.

Related tags

AirSmoke DispersionHomogeneous And Heterogeneous MixturesExploring Mixtures And Their SeparationScienceClass 9 Mcq

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