Which of the following involves coagulation? \ I. Peptization
II. Formation of delta regions
III

Question

Which of the following involves coagulation? \  I. Peptization 
II. Formation of delta regions 
III. Treatment of drinking water by potash alum 
IV. Clotting of blood by the use of ferric chloride

Professor PC Thomas Classes · Answer

Delta formation, water treatment with alum, and blood clotting are examples of coagulation. Peptization is the reverse.