Surface Chemistry - Result Question 12
####12. An example of solid sol is
(2019 Main, 11 Jan I)
(a) gem stones
(b) hair cream
(c) butter
(d) paint
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Answer:
Correct Answer: 12. (a)
Solution:
- Solid sol consists of solid as both dispersed phase and dispersion medium. In gemstones, metal crystals (salt and oxides of metals) are dispersed in solid (stone) medium. Hair cream is an emulsion (liquid in liquid). Butter is a colloidal solution of liquid in solid. Paint is also sol (solid in liquid).
