Burning of wood : Chemical change :: Magnetisation of an iron needle : _____

Burning of wood : Chemical change :: Magnetisation of an iron needle : _____
  1. Chemical change
  2. Physical change
  3. Irreversible chemical change
  4. Biological change

Solution

Magnetising an iron needle alters only its magnetic properties without forming any new chemical substance, making it a physical change.

Asked in: Homi Bhabha Practice

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