Non-metal oxides can form acidic solutions in water. Which of the following is an example?
Answer and explanation
Correct answer: Carbon dioxide
Carbon is a non-metal, and its oxide carbon dioxide dissolves in water to form carbonic acid: CO2 + H2O ⇌ H2CO3. This makes the solution acidic, so option C is correct. Calcium oxide, magnesium oxide and sodium oxide are generally metal oxides and show basic behaviour, although some oxides can have special or amphoteric properties.
Frequently asked questions
What is the correct answer to this question?
Carbon dioxide
Why is this the correct answer?
Carbon is a non-metal, and its oxide carbon dioxide dissolves in water to form carbonic acid: CO2 + H2O ⇌ H2CO3. This makes the solution acidic, so option C is correct. Calcium oxide, magnesium oxide and sodium oxide are generally metal oxides and show basic behaviour, although some oxides can have special or amphoteric properties.
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.
