Question

One of the following does not show Tyndall effect. This one is:

(a) soap solution (b) ink (c) sugar solution (d) starch solution

Answer 1

(c) sugar solution

The scattering of the light through the colloid is known as the Tyndall effect. The sugar solution is not a colloidal solution, the particles in the sugar solution are too small. In addition to that, the sugar solution is a true solution and light does not scatter in true solutions. So, a solution of sugar and water does not show Tyndall effect.