ElectrochemistryAnode and Cathode Reactions16Choose the best answerThe cathodic process during electrolysis of dilute H₂SO₄ using Pt electrodes is:AReductionBBoth oxidation and reductionCOxidationDNeither oxidation nor reduction Like 0 Discuss 0Share
ElectrochemistryAnode and Cathode Reactions17Choose the best answerWhich reaction occurs at the cathode?ACu²⁺ + 2e⁻ → CuBCu → Cu²⁺ + 2e⁻CHg + ½O₂ → HgODMg + ½O₂ → MgO Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number18Choose the best answerThe average oxidation state of carbon in C₂O₄²⁻ is:A+4B−4C+3D+2 Like 0 Discuss 0Share
ElectrochemistryOxidizing Strength and Reduction Potential19Choose the best answerA stronger oxidizing agent has a:ALower cell emfBHigher oxidation potentialCHigher reduction potentialDLower reduction potential Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number20Choose the best answerThe oxidation state of oxygen in KO₂ is:A−1/2B−2C−1D−3 Like 1 Discuss 0Share