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What is chemical adsorption ? Give three...

What is chemical adsorption ? Give three characteristics.

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When the molecules of the adsorbate are held to the surface of the adsorbent by the chemical bonds, the adsorption is called chemical adsorption or chemisorption.
Characteristics :
(i) It is specific in nature. (ii) It is irreversible in nature.
(iii) Adsorption increases as temperature increases.
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