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JAMB Chemistry 1998 Question 18

Question 18

Solubility and Solutions

Soap lather is an example of a colloid in which

  1. A.liquid is dispersed in gas
  2. B.solid is dispersed in liquid
  3. C.gas is dispersed in liquid
  4. D.liquid is dispersed in liquid.
Show the answer and explanation

Answer: C (gas is dispersed in liquid)

Explanation

Lather (foam) is made of tiny air bubbles trapped in soapy water, so a gas is dispersed in a liquid.