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 con sists of solid as both dispersed phase and dis per sion me dium. In gemstones, metal crys tals (salt and ox ides of met als) are dis persed in solid (stone) me dium. Hair cream is an emul sion (liq uid in liq uid). But ter is a colloidal solution of liquid in solid. Paint is also sol (solid in liquid).
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