In the reaction CuO + H₂ → Cu + H₂O, which process occurs to hydrogen?
Answer and explanation
Correct answer: Oxidation
In CuO + H₂ → Cu + H₂O, hydrogen combines with oxygen removed from copper(II) oxide and becomes water. Gain of oxygen is oxidation, so hydrogen is oxidised and option A is correct. Copper(II) oxide loses oxygen and is reduced. Displacement describes a reaction pattern, while neutralisation involves an acid and a base, neither of which identifies hydrogen’s process here.
Frequently asked questions
What is the correct answer to this question?
Oxidation
Why is this the correct answer?
In CuO + H₂ → Cu + H₂O, hydrogen combines with oxygen removed from copper(II) oxide and becomes water. Gain of oxygen is oxidation, so hydrogen is oxidised and option A is correct. Copper(II) oxide loses oxygen and is reduced. Displacement describes a reaction pattern, while neutralisation involves an acid and a base, neither of which identifies hydrogen’s process here.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
