Question

difference between colloidal and true solution on the basis of filtration visibility and beam of light of torch

Answer 1

colloids
*they cannot be separated by filteration
*they scatter light as the size of particles is more than 1nm.

true solution
*they cannot be separated by filtration
*they don't scatter light or don't show Tyndall effect as the size of particles are less than 1nm.

hope it helps.....