Question

which of the following will show tyndall effect 1 salt solution 2 milk 3 coppersulphate solution 4 starch solution see​

Answer 1

Tyndal effect means when light is focused on the solution the path of the light is visible.

• Milk is a Colloidal Solution.So,it will show tyndall effect.

• Starch is also a Colloidal solution.It will also show Tyndall effect.

Why does True Solution does not show Tyndall effect-

$\implies$ Because,(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.

A True Solution is mixture of two or more homogeneous mixture in the fixed ratio.For example- Salt solution ,Sugar solution etc.

• The particles of solution are very small.

• The particles can not be filtered by filter paper.

• It does not show tyndall effect.

• It does not Show sedimentation.

Supension is a heterogeneous mixture in which the solute particles do not dissolve, but get suspended throughout the bulk of the solvent,

• The particles of Supension are very large and they can be seen by naked eye.

• It shows tyndal effect.

• It can be filtered.

• It show sedimentation