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When copper oxide is heated with hydrogen, copper is formed. Which process occurs to copper oxide in this reaction?

Answer and explanation

Correct answer: Reduction

The reaction is CuO + H₂ → Cu + H₂O. Oxygen is removed from copper(II) oxide and combines with hydrogen to form water. Removal of oxygen is called reduction, so CuO is reduced to copper and option A is correct. Hydrogen gains oxygen and is oxidised; this simultaneous reduction and oxidation makes the reaction a redox process.

Related tags

Redox ReactionsReductionCopper OxideChemical ReactionsClass10 ScienceChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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