Question

Which of the following is/are true regarding absorption and adsorption?

Answer 1

Absorption	Adsorption
The substance is uniformly distributed throughout the bulk of the solid.	The substance is concentrated only at the surface and does not penetrate through the surface to the bulk of the adsorbent.
The concentration is uniform throughout the bulk of the material.	The concentration of the adsorbate increases only at the surface of the adsorbent