Which of the following will show Tyndall effect? Why?
$(a)$ Salt solution
$(b)$ Milk
$(c)$ Copper sulphate solution
$(d)$ Starch solution.
$(a)$ Salt solution
$(b)$ Milk
$(c)$ Copper sulphate solution
$(d)$ Starch solution.
(B, D) Milk and starch solution will show the Tyndall effect.
This is because both milk and starch solution are colloidal solutions.
Colloidal particles are large enough to scatter a beam of light passing through them,which makes the path of light visible.
This phenomenon of scattering of light by colloidal particles is known as the Tyndall effect.
Salt solution and copper sulphate solution are true solutions,where particles are too small to scatter light.
This is because both milk and starch solution are colloidal solutions.
Colloidal particles are large enough to scatter a beam of light passing through them,which makes the path of light visible.
This phenomenon of scattering of light by colloidal particles is known as the Tyndall effect.
Salt solution and copper sulphate solution are true solutions,where particles are too small to scatter light.
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