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Physical and Chemical Changes — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes1 Mark
MCQ
Which of the following would not be a physical change?
  • A
    Freezing water to make ice cubes.
  • B
    Melting gold to make jewellery.
  • ✓
    Burning gasoline in a lawn mower.
  • D
    Boiling water for soup.
✓

Answer

Correct option: C.
Burning gasoline in a lawn mower.
Burning gasoline in a lawnmower is a chemical change. Here, a combustion reaction takes place. Freezing water to make ice cubes, melting gold to make jewellery and boiling water for soup are examples of physical change since, only a change in physical state takes place.

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