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Why does aqueous sodium chloride conduct electricity even though it is neutral?

Answer and explanation

Correct answer: It has mobile ions

The governing concept is the difference between electrical neutrality and electrical conduction. Sodium chloride dissolves and dissociates in water into mobile Na⁺ and Cl⁻ ions. Equal positive and negative charges make the solution approximately neutral overall, but the ions can still move and carry current. Hence option A is correct. Being neutral does not mean being ion-free, so options B, C and D are wrong.

Related tags

Sodium ChlorideConductivityNeutral SaltAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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