Among the following changes in the states or appearance of iron, which one is a chemical change?

Options :
  1. Rusting of iron
  2. Tempering of iron
  3. Melting of iron
  4. Bending of iron
Answer and Explanation :-

Answer: Option 1

Explanation:

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...art must must carry man's craving for the ideal, must be an expression of his reaching out towards it that art must give man hope and faith. And the more hopeless the world in the artist's version, the more clearly perhaps must we see the ideal that stands in opposition - otherwise life becomes impossible! Art symbolises the meaning of our existence.
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