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Which pair will undergo a neutralisation reaction when mixed?

Answer and explanation

Correct answer: Hydrochloric acid and sodium hydroxide

Neutralisation is the reaction between an acid and a base in which salt and water are formed. Hydrochloric acid reacts with sodium hydroxide according to HCl + NaOH → NaCl + H₂O. The other pairs represent dissolution or no relevant acid-base reaction under ordinary conditions: sodium chloride and sugar dissolve in water, while copper does not neutralise water. Hence A is correct.

Related tags

NeutralisationHydrochloric AcidSodium HydroxideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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