Question

Differentiate between (a) Lyophilic and Lyophobic sol. (b) macromolecular and multimolecular colloids.

Answer 1

Answer:

(a) Particles in lyophilic sols are lyophilic colloids, and particles in lyophobic sols are lyophobic colloids. The main difference between lyophilic and lyophobic colloids is that lyophilic colloids are thermodynamically stable whereas lyophobic colloids are unstable.

Explanation:

(b) Multimolecular colloids are formed by the aggregation of a large number of simple molecules, macromolecular colloids consists of macromolecules having size in the colloidal range. On the other hand, associated colloids also called micelles, are generally electrolytes. They exist as ions at low concentration.

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