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Class 10 Science Medium Mcq English Medium

In the reaction CuO + H2 --heat--> Cu + H2O, which substance is being oxidised?

Question
In the reaction CuO + H2 --heat--> Cu + H2O, which substance is being oxidised?
Copper(II) oxide
Hydrogen
Copper metal
Neither substance
Answer
Hydrogen
Detailed Explanation
Hydrogen gains oxygen to form water in this reaction, so the hydrogen is being oxidised.
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