ElectrochemistryOxidation and Reduction6Choose the best answerIn the reaction: HI + H₂SO₄ → I₂ + SO₂ + H₂O which element is reduced?AHBICSDO Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number7Choose the best answerThe average oxidation state of carbon in glucose, C₆H₁₂O₆, is:A+4B−4C+6D0 Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number8Choose the best answerWhat is the oxidation state of oxygen in KO₂?A−1/2B−2C−1D−3 Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number9Choose 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 Method10Choose 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