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Surface Chemistry — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistrySurface Chemistry2 Marks
Question
What is physical adsorption? Give example.
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Answer

Physcial adsorption is a process in which adsorbate are attached to adsorbent by means of weak van der Waals forces of attraction. e.g.,
1. Adsorption of $N _2$ on mica
2. Adsorption of gases on charcoal.

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