Column - I and Column - II contains four emtries each. Entries of Column -I are to be matched with some entries of Column - II . One or more than one entries of Column -I may have the matching with the same entries of Column - II. `{:("column-I","column-II"),("(A) Coagultation ","(P) Due to persence of charge "),("(B) Electrophoresis ",(Q) " Due to scattering of light "),("(C) tyndall effect","(R) Due to netralization of charge "),("(D)Brownian movement","(S) Due to impact of the molecules of the dis-persion medium with colloidal particles "):}`