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All alkalis are bases but all bases are not alkalis. What is the reason?

Answer and explanation

Correct answer: Some bases are insoluble in water

The governing concept is the definition of an alkali. Every alkali is a base, but an alkali must also be soluble in water. Some bases, such as copper(II) oxide, do not dissolve appreciably in water; they can still neutralise acids but are not called alkalis. Thus option A correctly explains the one-way relationship. The other statements either confuse acids with bases or give chemically false claims.

Related tags

BaseAlkaliSolubilityAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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