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Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
Which of the following does not have a fixed melting point / boiling point?
  • A
    Gold.
  • B
    Ethanol.
  • ✓
    Air.
  • D
    Oxygen.
✓

Answer

Correct option: C.
Air.
Air is a homogeneous mixture of different gases. Hence, it does not have a fixed melting or boiling point.

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