ElectrochemistryRules and Exceptions of Oxidation Number51Choose the best answerWhat is the oxidation state of oxygen in KO₂?A−1/2B−2C−1D−3 Like 0 Discuss 0Share
ElectrochemistryElectrolysis of Molten Salts52Choose the best answerElectrolysis of molten NaCl produces:ANa at the cathode and Cl₂ at the anodeBH₂ at the cathode and Cl₂ at the anodeCNa and NaOHDH₂, Cl₂ and NaOH Like 0 Discuss 0Share
ElectrochemistryOxidation and Reduction53Choose the best answerWhich statement is NOT true for the reaction Fe³⁺ + e⁻ → Fe²⁺?AFe³⁺ is reducedBThe oxidation state of Fe changesCFe³⁺ acts as an oxidizing agentDBoth Fe³⁺ and Fe²⁺ are anions Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number54Choose the best answerThe oxidation numbers of oxygen in OF₂ and H₂O₂ are respectively:A−2, −1B+2, −1C−1, +2D+2, +1 Like 1 Discuss 0Share
ElectrochemistryBalancing Redox Reactions by Ion-Electron Method55Choose the best answerTo balance the reduction half-reaction: MnO₂ + 4H⁺ → Mn²⁺ + 2H₂O electrons should be added as:A2e⁻ on the left sideB2e⁻ on the right sideC4e⁻ on the left sideD4e⁻ on the right side Like 3 Discuss 0Share