Question

How is an emulsion different from a solution?
a)The components are mixed unevenly instead of evenly within the emulsion.
b)Insoluble instead of soluble particles are suspended within the emulsion.
c)Two liquids that normally are not mixable are mixed in the emulsion.
d)The components of an emulsion are single elements or compounds instead of a mixture of compounds.

Answer 1

Option a..because emulsions are colloids ...and colloids are always heterogenous system..

Answer 2

Answer:

Emulsions are prepared by shaking vigorously a mixture of two immiscible liquids. Emulsions are lyophobic and unstable. Hence a third substance called an emulsifying agent also called emulsifier is added to the emulsion during its preparation The emulsifiers are soaps, detergents, long chain sulphonic acids, lyophilic sols, alkyl sulphonates, etc. The emulsifier forms a protective layer surrounding the disperse phase or colloidal particle and converts lyophobic emulsion into lyophilic emulsion. Hence emulsion is prepared by mixing an emulsifier with a dispersion medium and then adding the disperse phase slowly with constant stirring