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Metal oxides form salt and water with acids. This is an example of which broader rule?

Answer and explanation

Correct answer: Metal oxides are generally basic

The governing concept is neutralisation: an acid reacts with a base to produce salt and water. Many metal oxides, such as copper(II) oxide and magnesium oxide, react with acids in this way, so they show basic character. Therefore option A is correct. Option B reverses the usual rule, while options C and D describe properties that are chemically impossible or irrelevant to this reaction.

Related tags

Metal OxidesBasic NatureNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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