$(a)$ List any three characteristics of a colloid.
$(b)$ Name the two components of a colloid.
$(c)$ Identify colloids from the following mixtures:
Muddy water,sugar in water,ink,blood,soda water,foam.

(C) The three characteristics of a colloid are:
$(i)$ It is a heterogeneous mixture.
$(ii)$ The particles of a colloid scatter a beam of light passing through it (Tyndall effect).
$(iii)$ It is a stable mixture,meaning the particles do not settle down when left undisturbed.
$(b)$ The two components of a colloid are:
$(i)$ Dispersed phase
$(ii)$ Dispersing medium
$(c)$ Among the given mixtures,the colloids are: Ink,blood,and foam.