Question

Differentiate true solution and colloidal solution.

TNSCERT Class 10 Chemistry Ch 9 Solutions

Answer 1

True solution (i) A true solution is a homogeneous mixture of two or more than two substances. (ii) In a true solution, solute cannot be seen even with a microscope. (iii) In a true solution, the size of particles is about 10-10 m. (iv) The constituents of a true solution cannot be separated by filtration. Colloid (i) A colloid is a homogeneous-looking, but heterogeneous-mixture. (ii) In a colloid, the particles can be seen only with a powerful microscope. (iii) In a colloid, the size of particle is between 10-7 – 10-9 m. (iv) The constituents of a colloid cannot be separated by filtration.