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JAMB Chemistry 1995 Question 17

Question 17

Solubility and Solutions

The difference between colloides and suspensions is brought out clearly by the fact that while colloids

  1. A.do not scatter light, suspensions do
  2. B.can be separated by filtration, suspensions cannot be so separated
  3. C.can be separated by a membrane, suspensions cannot
  4. D.do not settle out on standing, suspensions do
Show the answer and explanation

Answer: D (do not settle out on standing, suspensions do)

Explanation

Colloid particles are small enough to stay dispersed indefinitely, but the larger particles of a suspension settle out when left to stand.