Question

constituent substance of a colloid cannot be separated by ordinary filtration

Answer 1

Yes the above statement is true because of the following reasons:-

• In a colloidal solution the particle size ranges from 10 power -5 nanometers to 10 power -7 nanometers.
• Which means the particles remain suspended and do not settle at the bottom.
• The particles in a colloidal solution exhibit Tyndall effect as the particle suspended are large enough to scattter the light.
• These solutions are heterogeneous in nature which means that we can distinguish between the suspended particles and the entire solution.

I hope this helps u