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A student says all salts are neutral. Which example disproves this statement?

Answer and explanation

Correct answer: Acidic solution of ammonium chloride

A salt solution need not always be neutral because the ions may react with water, a process called hydrolysis. Ammonium chloride is formed from a strong acid and a weak base; its ammonium ion reacts with water and produces hydronium ions, so its solution is acidic. Sodium chloride, from a strong acid and strong base, is approximately neutral. Pure water and dry sand are not counterexamples to the statement about salts.

Related tags

Salt HydrolysisAcidic SaltAmmonium ChlorideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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