when an iron article is kept in open for a long period of time it gets covered with a powdery substance . comment
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Rusting of iron metal is the most common form of corrosion. During the corrosion of iron, iron metal is oxidised by the oxygen of air in the presence of water (moisture) to form hydrated iron oxide called rust.
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Answer:
it will rust
Explanation:
because when we kept an iron article in open the moist air which is present around it .
Will make it to start rust .
so, this means that moist air causes rusting
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