Answers

2014-05-24T14:07:06+05:30
 the process in which iron turns into iron oxide is Rusting 
4Fe + 3O2 --> Fe2O3
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2014-05-24T14:11:04+05:30
It is a chemical reaction in which a thin layer of reddish brown substance is collected on the surface of  iron object in the presence of air and moisture
We can prevent it by alloying
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