MHT CET 2024 Chemistry question

Not in JEE Main or NEET syllabus

Which from following statements is NOT true about lyophilic colloids?

(A)The particles of dispersed phase have greater affinity for the dispersion medium
(B)These are reversible
(C)These are self stabilized
(D)Coagulation occurs even by adding very small amount of electrolytesCorrect

Answer: (D)

Solution

Lyophilic (solvent-loving) sols have dispersed particles with strong affinity for the medium, so (A) is true. They are reversible: after the dispersion medium is removed, adding it again regenerates the sol, so (B) is true. They are stable because the particles are strongly solvated, hence

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Question ID VK-093371