Question
Give some examples of adsorption.
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Answer
Following are some examples of adsorption:
- Adsorption of gases like hydrogen and oxygen by finely divided metals, namely, platinum, palladium, copper, nickel, etc.
- Adsorption of gases like nitrogen and carbon dioxide by activated charcoal.
- Removal of colouring matter like an organic dye, for example, methylene blue. When charcoal is added to methylene blue solution and shaken, it becomes colourless after some time as dye molecules accumulate on the surface of charcoal.
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