In which of the following does adsorption take place and why?
(i) Silica gel placed in the atmosphere saturated with water
(ii) Anhyd. `CaCl_(2)` place in the atmosphere saturated with water.

Explanation

Silica gel is a good adsorbent and hence. Water vapours are adsorbed on its surface . Anhyd . `CaCl_(2)` undergoes adsorption because it combines with water molecules to form hydrated calcium chloride `CaCl_(2) . 2H_(2) O`