Question

Colloids do not involve only solids and liquids, they may also involve gases. So, colloids are classified
according to the physical state of dispersed phase(solute) and dispersion medium(solvent). Four of
them are mentioned below. Write how they are made and mention one example of each.
i. Sol 1
ii. Solid foam 1
iii. Aerosol 1
iv. Emulsion 1

Answer 1

Answer:

sol = liquid +liquid eg blood

solid foam =gas +solid eg sponge

aerosol = liquid/ solid + gas eg air particles in air

emulsion = combination of any two phase eg milk

above all are types of emulsions