Question

Match List I with List II and select the correct answer. 

 

• A. A-II, B-I, C-III, D-IV
• B. A-IV, B-I, C-II, D-III
• C. A-I, B-II, C-IV, D-III
• D. A-IV, B-II, C-I, D-III

Hint:

- Aerosol: A colloidal system where particles are dispersed in gas (e.g., smoke, fog). - Foam: Gas dispersed in liquid or solid (e.g., shaving cream, soap lather). - Emulsion: Liquid dispersed in another liquid (e.g., milk, mayonnaise). - Gel: Liquid dispersed in solid (e.g., cheese, jelly).

Answer 1

The Correct Option is D

Step 1: Understanding the Classification of Colloidal Systems 
- Aerosols (A) are colloidal dispersions of solid or liquid particles in a gas, such as smoke (IV). 
- Foams (B) are gas dispersed in a liquid, like soap lather (II). 
- Emulsions (C) are liquid-liquid colloidal dispersions, such as milk (I). 
- Gels (D) are semi-solid colloidal systems where liquid is dispersed in a solid, like cheese (III). 
Step 2: Verifying the Matches - A = IV (Smoke) - B = II (Soap lather) - C = I (Milk) - D = III (Cheese) 
Final Answer: The correct matching is Option D.