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Why are all bases not alkalis?

Answer and explanation

Correct answer: Because all bases are not soluble in water

The key distinction is solubility. Every alkali is a base, but only a base that dissolves in water is called an alkali. Bases such as copper(II) hydroxide are poorly soluble, so they are not classified as alkalis. Hence option A is correct. Bases can form salts with acids and contain or produce ions, so options B, C, and D are scientifically incorrect.

Related tags

BaseAlkaliSolubilityDefinitionsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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