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Which problem is solved by adding a small amount of acid during electrolysis of water?

Answer and explanation

Correct answer: Low conductivity of pure water

Electrolysis requires the solution to conduct electric current. Pure or distilled water contains very few ions, so its electrical conductivity is too low for efficient electrolysis. Adding a small amount of a suitable acid increases the concentration of mobile ions, allowing current to pass and the water to decompose into hydrogen and oxygen. Therefore option B is correct; the other choices are not problems of electrical conduction.

Related tags

ElectrolysisWaterElectrical ConductivityIonsChemical ReactionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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