Question

The solution of natural rubber in benzene is an example of:

• A. lyophobic colloids
• B. macromolecular colloid
• C. multimolecular colloid
• D. associated colloid

Answer 1

The correct option is B macromolecular colloid

Macromolecular Colloids: Certain substances form large molecules whose dimensions are comparable to those of colloidal particles. Such molecules have very high molecular masses and are termed as macromolecules. When such substances are dispersed in suitable dispersion medium, the resulting colloidal solutions are known as macromolecular colloids.

Examples :- Synthetic polymers such as polyethylene, polypropylene, synthetic rubber etc. also form macromolecular colloids when dispersed in suitable solvents.