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Is Matter Around Us Pure ? — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?1 Mark
MCQ
Which of the following is not a suspension:
  • A
    Flour in water
  • B
    Chalk in water
  • C
    Muddy water
  • D
    Milk
✓

Answer

  1. Milk

Explanation:

Milk is a colloid and is a mixture of fat dispersed and suspended in water.

Suspension is distinguished from colloids by larger particle sizes which settle down when the solution is kept undisturbed, which is the case with the solutions mentioned in A, B and C.

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