Finely divided solids make good adsorbents because they have large:
AMelting point
BCrystal size
CSurface area
DAtomic weight
Answer & Solution
Correct answer: C. Surface area
1. Adsorption happens on the exposed surface of the solid.
2. Dividing a solid finely exposes far more of it.
3. So finely divided solids have a large surface area.
_Source: NCERT Class 12 Chemistry Part I, Chapter 5, Surface Chemistry._
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