Q.

An emulsion is a colloidal solution of -

A. Liquid in liquid
B. Solid in liquid
C. Gas in solid
D. Solid in Solid
Answer» A. Liquid in liquid
Explanation: An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are part of a more general class of two-phase systems of matter called colloids. Examples of emulsions include vinaigrettes, homogenized milk, mayonnaise, and some cutting fluids for metal working.
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