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Which gas is formed at the anode in the chlor-alkali process?

Answer and explanation

Correct answer: Chlorine

The chlor-alkali process electrolyses brine. At the anode, oxidation occurs: chloride ions lose electrons and form chlorine gas, represented by 2Cl⁻ → Cl₂ + 2e⁻. Hydrogen is formed at the cathode by reduction of water. Oxygen and carbon dioxide are not the characteristic anode products in this process, so chlorine, option B, is correct.

Related tags

Chlor-AlkaliAnodeChlorineAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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