When the copper oxide is heated with hydrogen, copper metal and water are formed. What happens to the hydrogen in this reaction?

Reduction

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Oxidation

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Both oxidation and reduction

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Decomposition

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Solution

The correct option is B Oxidation
Hydrogen is passed over hot copper oxide. The oxide of copper gets converted into copper metal and water. In copper oxide, the removal of oxygen i.e. reduction and oxygen are added to hydrogen that is oxidation. So the hydrogen is converted to water which is oxidation.

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