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Where is sodium hydroxide obtained in the chlor-alkali process?

Answer and explanation

Correct answer: In the solution

The governing concept is electrolysis of brine. Sodium chloride solution contains Na+, Cl−, water, and supporting ions. Chlorine gas is released at the anode, while hydrogen gas is formed at the cathode from water. The remaining Na+ and OH− ions stay in the aqueous phase and form sodium hydroxide in the solution. Therefore option A is correct. NaOH is not obtained as an anode gas or as solid sodium metal at the cathode.

Related tags

Chlor-Alkali ProcessSodium HydroxideBrine ElectrolysisAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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