Question

Solution of soap in water is a :

• A. True solution
• B. Colloidal solution
• C. Suspension
• D. None of the above

Answer 1

The correct option is B

Colloidal solution

Correct Answer: Option(B) Colloidal solution

The explanation for the correct answer:

1. Colloidal Solutions: It is a heterogeneous mixture made up of two phases namely, the dispersed phase and the dispersion medium.
2. A soap solution is a solution containing soap.
3. It is considered a colloidal solution since it contains a dispersion medium and dispersed phase.
4. Dispersion medium: The medium in which the colloidal particles are dispersed is called the dispersion medium.
5. Dispersed phase: The phase that is scattered or present in the form of colloidal particles.
6. Soap lather is an example of colloidal system foam in which the dispersed phase is gas and the dispersion medium is liquid.

The explanation for the incorrect answer:

1. Option (A) True solution: It is a homogeneous mixture that contains small solute particles that are dissolved throughout the solvent.
2. Option (C) Suspension: Suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium.

Solution of soap in water is an Option(B) Colloidal solution.