The adhering of the molecules of gas on the surface of a solid is called _______ _.

mixture

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adsorption

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reduction

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none of these

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Solution

The correct option is A adsorption
The adhering of the molecules of gas on the surface of a solid is called adsorption. It is a surface phenomenon. It is defined as the phenomenon of accumulation of higher concentration of one substance on the surface of another than in the bulk.

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