Question

Among the following, the incorrect statement about colloids is:
A. They can scatter light.
B. They are larger than small molecules and have high molar mass.
C. The range of diameters of colloidal particles is between 1 and 100nm.
D. The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration

Answer 1

Hint:. Colloids (also called as colloidal solutions or colloidal systems) are mixtures during which microscopically dispersed insoluble particles of 1 substance are suspended in other substances. The dimensions of the suspended particles during a colloid can range from 1 to 1000 nanometres.

Complete step by step answer:
Colloidal solution could be a mixture during which very small particles of 1 substance are distributed evenly throughout another substance. The particles are generally larger than those present in an exceedingly solution, and smaller than those present in a very suspension. Paints, milk and fog are samples of colloids.The different kinds of colloids includes sol, emulsion, foam, and aerosol.
Sol could be a colloidal solution with solid particles present during a liquid.Emulsion may be a colloidal solution of two liquids.Foam is made when many gas particles are trapped during a liquid or a solid.
Aerosol contains some small particles of liquid or solid dispersed during a gas.

Properties of colloids are as follows:
They're heterogenous mixtures.
The scale of the particles of colloids is simply too small to be seen by oculus.
They scatter light passing through them making its path clearly visible.
Now, Colligative properties of the sol are smaller than the true solution at the identical concentration. So, D is that incorrect statement.
So, the correct answer is “Option D”.

Note: To identify a colloid mixture from an answer, we are able to use the optical phenomenon. This is often where you pass a lightweight through a mix. If the sunshine gets bounced off by the particles, you'll see the sunshine through it and it'll prove it's a colloid mixture.