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Is Matter Around Us Pure ? — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?1 Mark
Question
The substance which gives colloidal solution in water is:
✓

Answer

  1. Soap
Explanation:
A colloidal solution is a solution in which a material is evenly suspended in a liquid.
Classification of colloids depends on the dispersed phase and the dispersion medium.
The various types are sol, emulsion, foam and aerosol.
Soap is a type of foam in which the dispersion medium is a liquid and the dispersed phase is a gas.

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