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If a metal oxide reacts with an acid to form salt and water, what general nature of the metal oxide is proved?

Answer and explanation

Correct answer: Basic nature

The governing pattern is neutralisation: an acid reacting with a base produces salt and water. Metal oxides such as copper(II) oxide or magnesium oxide consume acid and form corresponding salts, for example CuO + 2HCl → CuCl₂ + H₂O. Since the oxide neutralises H⁺ ions, it behaves as a basic oxide. An acidic oxide would generally react with a base instead, and the other choices do not describe this chemical behaviour. Therefore option A is correct.

Related tags

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

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