Question

Why water and milk shows tyndall effect whereas solutions of copper sulphate do not .

Answer 1

Milk shows Tyndall effect because milk is a colloid n it's particle size is between 1nm to 1^-9 whereas the particle size of CuSO4 is less than the size of colloids.

Answer 2

Milk, copper sulphate, solution and starch solution shows ‘Tyndall effect’.