Surface Chemistry - Result Question 1
####1. Among the following, the incorrect statement about colloids is
(2019 Main, 12 April II)
(a) They can scatter light
(b) They are larger than small molecules and have high molar mass
(c) The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration
(d) The range of diameters of colloidal particles is between 1 and $1000 nm$
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Answer:
Correct Answer: 1. (c)
Solution:
- Statement (c) is incorrect about colloids. Colligative properties such as relative lowering of vapour pressure, elevation in boiling point, depression in freezing point and osmotic pressure of a colloidal solution is of low order than the true solution at the same concentration.
