Q.Answer the following question.
Identify dispersed phase and dispersion medium in the following colloidal dispersions.
a. milk
b. blood
c. printing ink
d. fog

a. Milk. Milk consists of fine fat droplets (the dispersed phase, liquid) dispersed through a watery medium (the dispersion medium, liquid) -- a liquid-in-liquid colloid, i.e. an oil-in-water emulsion.

b. Blood. Blood is a colloidal dispersion of plasma proteins and antibodies (dispersed phase) in water (dispersion medium, the plasma); it is at the same time a suspension of blood cells and platelets in that same plasma.

c. Printing ink. Printing ink is a dispersion of finely divided solid pigment/carbon particles (dispersed phase, solid) in a liquid vehicle such as oil or varnish (dispersion medium, liquid) -- a solid-in-liquid colloid (a sol). …

Identifying which component is present in the smaller proportion (dispersed phase) and which in the larger proportion (dispersion medium) for …

• Swapping dispersed phase and dispersion medium (the medium is always the component present in LARGER proportion). …