Q. 54.4( 13 Votes )

Identify the substance oxidised and reduced in the chemical reaction:

2Mg + O2 2MgO

Answer :

O2 is an oxidizing agent and Mg is reducing agent

2Mg + O2 2MgO


In the given reaction, O2 is reduced by losing oxygen atoms. Thus, O2 is an oxidizing agent as it undergoes reduction.


Mg is oxidized by gaining oxygen atoms. Thus, Mg is a reducing agent as it undergoes oxidation.


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