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Is Matter Around Us Pure — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
Which one of the following is a suspension:
  • A
    Mud in water
  • B
    Saltwater
  • C
    Blood
  • D
    None of these
✓

Answer

  1. Mud in water

Explanation:

Saltwater is a solution of salt in water in which the particles do not settle own. Blood is a natural colloid, where particles do not settle down.

But mud in water is a suspension as particles are large and heavy enough to settle down and separate from the solution when the solution is kept undisturbed for some time.

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