Metallic oxides of zinc, magnesium and copper were heated with the following metals.

Metal Zinc Magnesium Copper
Zinc oxide - - -
Magnesium oxide - - -
Copper oxide - - -

In which cases will you find displacement reactions taking place ?

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Metal Zinc Magnesium Copper
Zinc oxide No reaction Displacement No reaction
Magnesium oxide No reaction No reaction No reaction
Copper oxide Displacement Displacement No reaction

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