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What is formed when an acid reacts with a metal oxide?

Answer and explanation

Correct answer: Salt and water

Most metal oxides are basic oxides, so they react with acids in a neutralisation reaction. The products are a salt and water; for example, copper(II) oxide reacts with hydrochloric acid to form copper(II) chloride and water. Therefore, option A is correct. Hydrogen gas is usually associated with the reaction of an acid with a reactive metal, not with a metal oxide, and oxygen gas is not the general product.

Related tags

Metal-OxidesNeutralisationSalt-And-WaterAcid-ReactionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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