Which one of the following pairs of dispersed phases and dispersing media can never form a colloid?
A)Solid and Gas
B)Liquid and Gas
C)Solid and Solid
D)Liquid and Liquid
E)Gas and Gas

Question

Quizplus · Accepted Answer

Colloids are mixtures where one substance is dispersed evenly throughout another. The combination of gas in gas does not form a colloid because when gases mix, they form a homogeneous mixture or solution, not a colloid. All other pairs listed can form colloidal systems.

Which One of the Following Pairs of Dispersed Phases and Dispersing