why does rusting occur
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When iron is exposed to air or oxygen and water or moisture then it leads to rusting of iron
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Rusting happens because for example iron metal undergoes to oxidation -from Fe to Fe(||)due to the humidity(oxygen+water) ,then it further oxidised by oxygen to Fe(|||).The electrons given up by iron reduce atmospheric oxygen to water at the cathode ,which is another region........
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Hope it helps you!!
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