Which of the following statements is not correct about rusting of iron?
- ACoating of iron surface by tin prevents rusting, even if the tin coating is peeling off.
- BWhen pH lies above 9 or 10, rusting of iron does not take place.
- CDissolved acidic oxides SO₂, NO₂ in water act as catalyst in the process of rusting.
- DRusting of iron is envisaged as setting up of electrochemical cell on the surface of iron object.
✓ Correct answer: A
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