JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which one of the following does not involve coagulation?

(A)Formation of delta regions
(B)PeptizationCorrect
(C)Treatment of drinking water by potash alum
(D)Clotting of blood by use of ferric chloride

Answer: (B)

Solution

Delta formation (clay colloids coagulated by seawater electrolytes), alum treatment of water (coagulation of suspended clay), and ferric chloride clotting of blood (coagulation of negatively charged blood

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Question ID VK-144806