In the process of rusting, iron (Fe) reacts with which of the following substances that are present in the atmosphere?
A
O2(air)
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B
H2O(moisture)
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C
Both O2 and H2O
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D
Fe2O3
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Solution
The correct option is C Both O2 and H2O In the process of rusting, iron reacts with oxygen and moisture present in the atmosphere to form hydrated Iron oxide as per the following reaction: Fe+O2+H2O→Fe2O3.nH2O