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Copper oxide reacts with acid to form salt and water. What nature does this prove?

Answer and explanation

Correct answer: Basic

The governing concept is neutralisation between a basic oxide and an acid. Copper(II) oxide reacts as follows: CuO + 2HCl → CuCl₂ + H₂O. Formation of salt and water from an oxide and an acid indicates that the oxide has basic character. Therefore option B is correct. Acidic, neutral and volatile describe different properties and do not explain this neutralisation reaction.

Related tags

Copper OxideBasic OxideNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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