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What is the difference between multimolecular and macromolecular colloids? Give one example of each. How are associated colloids different from these two types of colloids?

What is the difference between multimolecular and macromolecular colloids? Give one example of each. How are associated colloids different from these two types of colloids?

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Suraj Prasad IIT Patna
askIITians Faculty 286 Points
9 years ago
Comparisons of multimolecular, macromolecular and associated colloids are as follows:

MULTIMOLECULAR COLLOIDS MACROMOLECULAR COLLOIDS ACCOCIATED COLLOIDS
They are formed by the aggregate of a large number of atoms or molecules which generally have diameters less than 1nm, e.g. Sols of gold, sulpher etc. They are molecules of large size e.g. polymers like rubber, nylon, starch. They are formed by of aggregation of a large number of ions in concentrated solution e.g. soap sol.
Their molecular masses are not very high. They have high molecular masses. Their molecular masses are generally high.
Their atoms or molecules are held together by weak vander Waal’s forces. Due to long chain, the vander Waal’s forces holding them are comparatively stronger. Higher is the concentration; greater are the vander Waal’s forces.
They usually have lyophilic character. They usually have lyophobic character. Their molecules contain both lyophobic and lyophilic characters.

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