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Among the following, the INCORRECT statement about colloids is :

1. The range of diameters of colloidal particles is between 1 and to 1000 nm
2. they are larger than small molecules and have high molar mass
3. They can scatter light
4. The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration.

Correct answer: The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration.

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