Question

which of the following shows tyndall effect?

Milk, coppe sulphate,

salt solution , none this the above​

Answer 1

Answer:

Milk and starch solution will show tyndall effect because they are colloids. A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions. ... The scattering of light by colloidal particle is known as tyndall effect

Answer 2

b) milk and (d) starch solution show Tyndall effect because they are colloidal solution.
Whereas (a) salt solution and (c) copper sulphate solution are true solution. Their particle size is too small to scatter light. So they do not show Tyndall effect.