Which pair 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

A colloid is a mixture where one substance of microscopically dispersed insoluble particles is suspended throughout another substance. However, a gas dispersed in another gas simply mixes uniformly to form a homogeneous mixture, not a colloid.

Which Pair of Dispersed Phases and Dispersing Media Can Never