Question

10. Write brief notes on:

Peptization ,Electrophoresis, and chemisorption​

Answer 1

Peptization: Peptization or Deflocculation is the process responsible for the formation of converting precipitate into colloid by shaking with it an electrolyte. This is particularly important in colloid chemistry or for precipitation reactions in an aqueous solution.

Electrophoresis: Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Electrophoresis of positively charged particles is sometimes called cataphoresis, while electrophoresis of negatively charged particles is sometimes called anaphoresis.

Chemisorption: Chemisorption is a kind of adsorption which involves a chemical reaction between the surface and the adsorbate. New chemical bonds are generated at the adsorbant surface. ... In contrast with chemisorption is physisorption, which leaves the chemical species of the adsorbate and surface intact.