ElectrochemistryElectrolysis of Aqueous Solutions36Choose the best answerDuring electrolysis of aqueous KNO₃, H₂ is produced at the cathode instead of K because:AK⁺ has a more positive reduction potential than H⁺BPotassium is less reactive than hydrogenCReduction of water/H⁺ is easier than reduction of K⁺DPotassium is already in the elemental state Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number37Choose the best answerThe oxidation number of nitrogen in NO₃⁻ is:A+5B+3C+2D−3 Like 0 Discuss 0Share
ElectrochemistryOxidation and Reduction38Choose the best answerIn the reaction: HI + H₂SO₄ → I₂ + SO₂ + H₂O which element is reduced?AHBICSDO Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number39Choose the best answerThe average oxidation state of carbon in glucose, C₆H₁₂O₆, is:A+4B−4C+6D0 Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number40Choose the best answerThe average oxidation state of sulfur in S₂O₃²⁻ is:A+4B+6C−2D+2 Like 1 Discuss 0Share