What happens when a lyophilic sol is added to a lyophobic sol? (A) Film of lyophobic sol is formed over lyophilic sol. (B) Lyophobic sol is coagulated (C) Film of lyophilic sol is formed over lyophobi

Question

What happens when a lyophilic sol is added to a lyophobic sol?

(A) Film of lyophobic sol is formed over lyophilic sol.
(B) Lyophobic sol is coagulated
(C) Film of lyophilic sol is formed over lyophobic sol.
(D) Lyophilic sol is dispersed in lyophobic sol.

Prashant Kotian · Accepted Answer

Correct answer: C. Lyophilic colloids have a unique property of protecting lyophobic colloids. When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect the latter from electrolytes.

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