1-Sodium Oxide+Carbon 2-Copper Oxide+Carbon 3-Aluminium Oxide+Carbon 4-Iron Oxide+Carbon 5-Lead Oxide+Carbon In which of these reactions is the metal reduced

1-Sodium Oxide+Carbon 2-Copper Oxide+Carbon 3-Aluminium Oxide+Carbon

1.	1-Sodium Oxide+Carbon 2-Copper Oxide+Carbon 3-Aluminium Oxide+Carbon 4-Iron Oxide+Carbon 5-Lead Oxide+Carbon In which of these reactions is the metal reduced
Answer» 1. Sodium Carbonate2.Copper Oxide ( monooxide)3.AL2O3-AL4C34.Fe2O3+3CO5.PbO4th REACTION is an REDUCTION reaction so in the 4TH reaction metal is REDUCED