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KCET2010ChemistrySurface Chemistry

Which one of the following does not involve coagulation?

Options

  1. AFormation of delta regions
  2. BPeptization
  3. CTreatment of drinking water by potash alum
  4. DClotting of blood by the use of ferric chloride

Correct answer

B. Peptization

Step-by-step solution

Coagulation is the phenomenon of conversion of colloidal sol into precipitate while in peptization, a fresh precipitate is converted into sol by adding electrolyte. Hence, it is clear that peptization does not involve coagulation.

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