Question

Among the following, which effect can be used sometimes to differentiate a true solution from a colloidal solution?

• A. Reflection
• B. Refraction
• C. Tyndall
• D. Dispersion

Answer 1

The correct option is C

Tyndall

The tyndall effect, also known as tyndall scattering, is light scattered by particles in a colloid (suspension containing fine particles). The wavelength of light scattered should be nearly equal to the size of the particles in the colloidal solution. Tyndall effect can be used to distinguish between true solution and colloidal solution as true solution does not show tyndall effect but colloidal solution does.