How is water formed in the reaction between copper oxide and hydrogen?
Answer and explanation
Correct answer: Hydrogen gains oxygen from copper oxide.
In the reaction \(\mathrm{CuO + H_2 \rightarrow Cu + H_2O}\), hydrogen gains oxygen from copper oxide to form water. Thus, hydrogen is oxidised and copper oxide is reduced to copper. Option B is incorrect because copper does not gain oxygen; it is formed from copper oxide.
Frequently asked questions
What is the correct answer to this question?
Hydrogen gains oxygen from copper oxide.
Why is this the correct answer?
In the reaction \(\mathrm{CuO + H_2 \rightarrow Cu + H_2O}\), hydrogen gains oxygen from copper oxide to form water. Thus, hydrogen is oxidised and copper oxide is reduced to copper. Option B is incorrect because copper does not gain oxygen; it is formed from copper oxide.
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.
