In which of the following is the Tyndall effect $NOT$ observed?

Milk is a colloid in which

Match the following types of colloidal systems in List-$I$ with their corresponding names in List-$II$.

List-$I$	List-$II$
$(A)$ Solid dispersed in liquid	$(I)$ Emulsion
$(B)$ Liquid dispersed in liquid	$(II)$ Foam
$(C)$ Gas dispersed in liquid	$(III)$ Gel
$(D)$ Liquid dispersed in solid	$(IV)$ Sol
	$(V)$ Aerosol

Fog is an example of a colloidal system.

Zeta potential is

How are colloids classified on the basis of
$(i)$ physical states of components
$(ii)$ nature of dispersed phase and
$(iii)$ interaction between dispersed phase and dispersion medium?