Question

What is the difference between multimolecular colloid and macro-molecular colloid? Write an example of each.

Answer 1

Differences between multimolecular and macro-molecular colloids:

Multimolecular Colloids	Macromolecular Colloids
1. They consist of aggregates of atoms or molecules which generally have diameter	1. They consist of large size molecules (generally polymers) like rubber, nylon etc.
2. The atoms or molecules are held by weak vander Waal’s forces.	2. The molecules are flexible and can take any shape.
3. Their molecular masses are not very high.	3. They have high molecular masses.
4. They have usually lyophobic character. Example: Sols of gold, sulphur etc.	4. They have usually lyophilic character Example: Starch, proteins etc.