. Which one of the following processes does not involve coagulation

A: Peptization

B: Formation of delta

C: Purification of drinking water using alum

D: Tanning of leather using tannin

Best Answer

Explanation : 

  • There is no coagulation in peptization.
  • The process of turning a precipitate into colloidal particles is known as peptidization.
  • The transition from colloidal to suspension state is referred to as coagulation.
  • Coagulation and peptization are hence diametrically opposed processes.

Final Answer :

Option A : Peptization

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