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Question
State two conditions necessary for rusting of iron.
Solution
Conditions for rusting of iron:
- The presence of water and oxygen is essential for the rusting of iron.
- Impurities in the iron, the presence of water vapour, acids, salts and carbon dioxide hasten to rust.
- Pure iron does not rust in dry and CO2 free air. It also does not rust in pure water, free from dissolved salts.
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