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Why does sodium chloride solution conduct electricity even though its pH is near 7?

Answer and explanation

Correct answer: Because a neutral solution can still contain mobile ions

The governing concept is the difference between pH and electrical conductivity. A pH near 7 means that the solution is approximately neutral, not that it contains no ions. Sodium chloride is a soluble ionic compound and dissociates in water: NaCl(aq) → Na⁺(aq) + Cl⁻(aq). These charged ions move toward opposite electrodes and carry electric current. Therefore option A is correct. Neutrality does not prevent conductivity; the claims that there are no ions or that NaCl is a hidden acid are incorrect.

Related tags

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

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