Copper oxide forms salt and water with acid. What nature of copper oxide is proved by this?
Answer and explanation
Correct answer: Basic oxide
A basic oxide reacts with an acid in a neutralisation reaction to form salt and water. For example, CuO + 2HCl → CuCl2 + H2O. Since copper oxide consumes the acid and produces these two products, it shows basic character and is classified as a basic oxide. Option A is correct. An acidic oxide generally reacts with a base, while copper oxide is neither a gas nor an ordinary salt in this reaction.
Frequently asked questions
What is the correct answer to this question?
Basic oxide
Why is this the correct answer?
A basic oxide reacts with an acid in a neutralisation reaction to form salt and water. For example, CuO + 2HCl → CuCl2 + H2O. Since copper oxide consumes the acid and produces these two products, it shows basic character and is classified as a basic oxide. Option A is correct. An acidic oxide generally reacts with a base, while copper oxide is neither a gas nor an ordinary salt in this reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
