Question

Which of the following is/are the properties of a colloid?

• A. can be separated by filtration
• B. can be made from solids, liquids, and gases
• C. scatters a light beam
• D. is a mixture in which the particles settle out

Answer 1

Answer: (B), (C)

The correct options are
B

can be made from solids, liquids, and gases

C

scatters a light beam

A colloid is primarily a heterogeneous mixture in which the minute particles of solute are dispersed in the given solvent.

Properties of colloids:

1. The size of the particles in a colloid lies between 1 – 1000 nm.
2. It is heterogeneous in nature.
3. Particles are not visible to naked eyes but can be studied under an ultramicroscope.
4. It shows the Tyndall effect, i.e., it scatters a beam of light passing through it.
5. It is translucent in appearance.