Question

Which of the following will form the colloidal system? DP and DM represents dispersed phase and dispersion medium.

• A. DP: Solid, DM: Liquid
• B. DP: Liquid, DM: Solid
• C. DP: Solid, DM: Gas
• D. DP: Gas, DM: Gas

Answer 1

Answer: (A), (B), (C)

The correct options are
A DP: Solid, DM: Liquid
B DP: Liquid, DM: Solid
C DP: Solid, DM: Gas

Only gas in gas systems will not form colloidal state (as all gases are miscible due to which they do not form colloids). All other systems will form colloidal state.