Which of the following is an example of absorption?
Water on silica gel
Water on calcium chloride
Oxygen on metal surface
None of these
As we learned in concept
Difference between Adsorption and Absorption -
In adsorption, the substance is concentrated only at the surface and does not penetrate through the surface to the bulk of adsorbent while in absorption, the substance is uniformly distributed throughout the bulk of solid.
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When water comes into contact with calcium chloride, it is uniformly distributed throughout the body and absorbed.
Option 1)
Water on silica gel
Incorrect option
Option 2)
Water on calcium chloride
Correct option
Option 3)
Oxygen on metal surface
Incorrect option
Option 4)
None of these
Incorrect option