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Emulsions and gels
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sc172
Milk is a colloidal system of the type:
A
water droplets dispersed in fat (water in oil emulsion)
B
gas dispersed in liquid
C
fat droplets dispersed in water (oil in water emulsion)
D
solid dispersed in liquid
Answer: C
Milk consists of tiny liquid fat globules dispersed in water, stabilised by the protein casein. It is therefore an oil-in-water emulsion.
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