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JEE Main levelOne or more correct optionsDifficulty 2 of 3sc197

Select the correct statement(s) about emulsions.

  1. AMilk is an oil-in-water emulsion.
  2. BButter is a water-in-oil emulsion.
  3. CAn emulsion is a dispersion of a solid in a liquid.
  4. DAn emulsifier forms an adsorbed film around the droplets and hinders their coalescence.

Answer: A, B, D

Milk (fat in water) and butter (water in fat) are standard examples, so statements 1 and 2 are correct. An emulsion is a liquid dispersed in another liquid, so statement 3 is wrong. The emulsifier film prevents coalescence (statement 4 is correct).
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