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1st question how is rusting caused how to prevent iron from rusting
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Science 1 Maharashtra board
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When the molecule of iron reacts with oxygen in the air a chemical reaction takes place and the iron is converted in a brown powdery substance called rust.
we can prevent rust by coating the iron with the layer of zinc, by galvanisation, painting etc....
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Hey your answer is:
Corrosion
The slow process of degradation of metals due to air , water or acids is called as corrosion.
Rust
A certain type of reddish coloured solid layer collects on their metallic surface . This layer is called rust .
Its chemical formula is Fe2O3.xH2O
Rust takes place on iron only .
PREVENTION:
It can be prevented with the method of galvanizing . In this method a thin layer of zinc is applied to prevent rusting of iron .
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