Four half reactions I to IV are shown below : I. 2Cl⁻ → Cl₂ + 2e⁻, II. 4OH⁻ → O₂ + 2H₂O + 2e⁻, III. Na⁺ + e⁻ → Na, IV. 2H⁺ + 2e⁻ → H₂. Which two of these reactions are most likely to occur when concentrated brine is electrolysed ?

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MCQ (Single)Products of ElectrolysisCBSE PYQ

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