Question

Identify the correct statements from the following (only one):
I) Sulphur sol is an example of multimolecular colloid.
II) Starch sol is an example of associated colloid.
III) Artificial rubber is an example of macromolecular colloid.

• A. I, II, III
• B. I, II only
• C. II, III only
• D. I, III only

Hint:

Classify colloids by particle size and nature; remember examples for each type.

Answer 1

The Correct Option is D

Step 1: Understand colloid types
- Multimolecular colloids are formed by aggregation of atoms or small molecules; sulphur sol is an example.
- Associated colloids (micelles) are formed by aggregation of amphiphilic molecules; starch sol is not associated colloid, but a suspension.
- Macromolecular colloids consist of large macromolecules; artificial rubber is an example.
Step 2: Evaluate statements
- Statement I: True
- Statement II: False
- Statement III: True
Step 3: Conclusion
Correct statements are I and III only.