Identify the oxidising agent (oxidant) in the following reactions.

i. pb3O4 + 8HCl 3pbCl2 + Cl2 + 4H2O


ii. 2Mg + O2 2MgO


iii. CuSO4 + Zn Cu + ZnSO4


iv. V2O5 + 5Ca 2V + 5CaO


v. 3Fe + 4H2O Fe3O4 + 4H2


vi. CuO + H2 Cu + H2O

i. Pb3O4is the oxidising agent as it loses its oxygen to oxidize HCl.


ii. O2 acts as the oxidizing agent here as it oxidizes Mg to form MgO.


iii. CuSO4 is the oxidizing agent here as it loses its oxygen here and oxidizes Zn to form ZnSO4.


iv. V2O5 is the oxidizing agent here as it loses its oxygen to Ca to oxidize it into CaO.


v. H2O is the oxidizing agent here as it loses its O2 to oxidize Fe into Fe3O4.


vi. CuO is the oxidizing agent here as it loses oxygen and oxidizes H2 to H20.


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