JEE Main 2019 Chemistry question

Not in JEE Main or NEET syllabus

Among the following, the INCORRECT statement about colloids is:

(A)The range of diameters of colloidal particles is between 1 and 1000 nm
(B)They are larger than small molecules and have high molar mass
(C)They can scatter light
(D)The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration.Correct

Answer: (D)

Solution

Colloids have far fewer particles, so their osmotic pressure is lower.

Question ID VK-010768