In which of the following option, solid is used as solute and gas as a solvent?
A
Cloud
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B
Smoke
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C
Soda water
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D
Cheese
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Solution
The correct option is B Smoke Smoke consists of tiny (microscopic or even smaller) particles of solid suspended in the air. So it is really a two-phase system -- solid and gas. It is properly called a solid aerosol.