Question

Which of the following are macromolecular colloids?

• A. Soap
• B. Starch
• C. Cellulose
• D. Both (B) and (C)

Answer 1

The correct option is D

Both (B) and (C)

Explanation for the correct option:

• In this form of colloids, macromolecules such as polymers serve as the disperse phase.
• When these macromolecules are dissolved in a dispersion medium, they generate solutions in which the molecules are dispersed.
• Macromolecular colloids are lyophobic in nature and have a high molecular mass.
• Polymers like starch and cellulose are formed from such colloids.

Explanation for the incorrect option:

Option A: Soap

• The creation of aggregates of microscopic particles results in formation of colloids known as aggregated or related colloids.
• Aggregated colloids are Lyophilic in nature and have low molecular mass.
• Associated colloids include soap and detergent.

Therefore, option (D) is correct.