1.

How are the two types of emulsions different from one another ? Give suitable examples to justify the difference. State two applications of emulsions.

Answer»

Two types of emulsions are as follows : 

Oil in WaterWater in Oil
In this type of emulsions, dispersed phase is oil and dispersion medium is water.
e.g., Milk.		In this type of emulsions, water acts as dispersed phase while the oil behaves as dispersion medium.
e.g., Butter.

Application of Emulsions : 

(i) In medicine: The various pharmaceuticals and cosmetics are available in liquid form such as cod liver oil etc., and some creams and ointment are emulsions of water in oil type. 

(ii) Cleaning action of soap: This action is based on the formation of oil in water type emulsions.


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