A metal oxide is added to an acid and salt and water are formed. What type of reaction is this?
Answer and explanation
Correct answer: Neutralisation-like reaction
The governing concept is acid–base neutralisation. Most metal oxides are basic oxides, so they react with acids to produce a salt and water. For example, copper(II) oxide reacts with hydrochloric acid: CuO + 2HCl → CuCl₂ + H₂O. The formation of salt and water identifies option A. Photosynthesis, evaporation, and condensation do not describe this chemical change.
Frequently asked questions
What is the correct answer to this question?
Neutralisation-like reaction
Why is this the correct answer?
The governing concept is acid–base neutralisation. Most metal oxides are basic oxides, so they react with acids to produce a salt and water. For example, copper(II) oxide reacts with hydrochloric acid: CuO + 2HCl → CuCl₂ + H₂O. The formation of salt and water identifies option A. Photosynthesis, evaporation, and condensation do not describe this chemical change.
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.
