Carbon dioxide is considered what type of oxide?
Answer and explanation
Correct answer: Acidic oxide
The governing concept is the classification of oxides according to their acid-base behaviour. Carbon is a non-metal, and its oxide, CO₂, reacts with water to form carbonic acid: CO₂ + H₂O → H₂CO₃. It also reacts with bases such as calcium hydroxide. Thus CO₂ is classified as an acidic oxide, so option B is correct. It is not a metal oxide, a basic oxide, or a salt.
Frequently asked questions
What is the correct answer to this question?
Acidic oxide
Why is this the correct answer?
The governing concept is the classification of oxides according to their acid-base behaviour. Carbon is a non-metal, and its oxide, CO₂, reacts with water to form carbonic acid: CO₂ + H₂O → H₂CO₃. It also reacts with bases such as calcium hydroxide. Thus CO₂ is classified as an acidic oxide, so option B is correct. It is not a metal oxide, a basic oxide, or a salt.
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.
