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A student says every base dissolves in water. What is the correct correction?

Answer and explanation

Correct answer: Not all bases dissolve in water and soluble bases are called alkalis

The governing concept is the distinction between a base and an alkali. A base is a substance that can neutralise an acid, but bases do not all dissolve in water. An alkali is specifically a base that dissolves in water and produces hydroxide ions in solution. Therefore option A gives the correct correction; the other statements wrongly reverse acid-base properties or confuse solubility with acidity.

Related tags

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

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