. 2 K + O2------> K2O.In this reaction which element undergoes oxidation and which undergoes reduction? Identify the oxidising agent and reducing agent?
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Aluminium metal has a strong affinity for oxygen and the oxide of Al is Al2O3, which is a very stable oxide. Hence ordinary chemically reducing agents are not sufficient to reduce Al2O3 to Al. Electrolytic reduction is a more powerful reduction method. Similarly sodium oxide, potassium oxide, calcium oxide and magnesium oxides are not reduced by common reducing agents..
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