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Why is carbon dioxide considered both a non-metal oxide and an acidic oxide?

Answer and explanation

Correct answer: Because it is an oxide of carbon and can form an acidic solution in water

An oxide is classified partly by the element combined with oxygen and partly by its reaction with water or bases. Carbon is a non-metal, so CO₂ is a non-metal oxide. In water it forms carbonic acid: CO₂ + H₂O ⇌ H₂CO₃, and it reacts with bases to form salts and water. It therefore shows acidic oxide behaviour. The litmus and metal-based alternatives contradict these facts, so A is correct.

Related tags

Carbon-DioxideAcidic-OxideNon-Metal-OxideClass10AcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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