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Standard XII
Chemistry
Question

Which of the following are the essential things required for rusting?
  1. oxygen
  2. water
  3. both
  4. none of the above

A
none of the above
B
oxygen
C
water
D
both
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Solution
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Rust is an iron oxide a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.
Hence both oxuygen and water are essential things for rusting.

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