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A student says carbon dioxide is only a gas, so it has no relation with acids and bases. What is the correct correction?

Answer and explanation

Correct answer: Carbon dioxide can behave like an acidic oxide

The relevant concept is the chemical nature of oxides, not their physical state. Carbon dioxide is a non-metal oxide; it dissolves partly in water to form carbonic acid and reacts with bases such as limewater. For example, CO2 + Ca(OH)2 produces CaCO3 precipitate and water. Hence option A is correct. It is not a metal oxide or a strong base, and the claim that it never dissolves is false.

Related tags

Carbon DioxideAcidic OxideLimewaterAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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