Multiple choice

Which of the following statements is/are correct about a colloidal solution?

  1. It must have components from all three phases, i.e. solids, liquids and gases.

  2. Dispersion medium is a component of a colloid.

  3. Dispersed phase is a component of a colloid.

  4. Both (2) and (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dispersed phase and dispersion medium are the two components of a colloidal solution. The rest of the statements are incorrect as: (1) Combination of all the three phases, i.e. solids, liquids and gases, is not necessary to form a colloid. (2) The solute-like component or the dispersed particles in a colloid form the dispersed phase. (3) A colloid does not settle down when left undisturbed, i.e. a colloid is quite stable. 

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