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Why is aqueous sodium chloride electrically conducting even though it is neutral?

Answer and explanation

Correct answer: It contains mobile ions

Neutrality and electrical conductivity describe different properties. A neutral sodium chloride solution has nearly equal concentrations of hydrogen and hydroxide ions, so its pH is close to 7. However, dissolved sodium chloride dissociates into mobile Na+ and Cl− ions. These charged particles move towards opposite electrodes and carry electric current. Therefore option A is correct; being neutral does not mean that a solution lacks ions. The other options are chemically incorrect.

Related tags

Sodium ChlorideNeutral SaltElectrical ConductivityAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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