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If a solution conducts electricity, what may be present in it?

Answer and explanation

Correct answer: Mobile ions

The governing concept is electrical conduction in electrolytic solutions. An electric current requires charged particles that can move. In an aqueous solution, dissolved acids, bases, or salts may separate into mobile positive and negative ions, which carry charge between the electrodes. Therefore option A is correct. Colour and smell are observable properties, not charge carriers, and sugar generally dissolves without producing ions, so B, C, and D do not explain conduction.

Related tags

ConductivityIonsElectrolytesAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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