ElectrochemistryOxidation Number36Choose the best answerThe oxidation number of an element in a species may be:APositiveBZero or fractionalCNegativeDAll of these Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number37Choose the best answerThe oxidation states of oxygen in OF₂ and H₂O₂ are respectively:A−2, −1B+2, −1C−1, +2D+2, +1 Like 0 Discuss 0Share
ElectrochemistryAnode and Cathode Reactions38Choose the best answerThe reactions occurring at the anode and cathode are respectively:AOxidation and reductionBReduction and hydrolysisCReduction and oxidationDOxidation and hydrolysis Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode39Choose the best answerWhich statement is NOT correct for the standard hydrogen electrode?APlatinum black is used on the Pt electrodeBThe standard temperature is commonly taken as 298 KCA 1 M H₂SO₄ solution is specifically requiredDIt is used as a reference for measuring electrode potentials Like 0 Discuss 0Share
ElectrochemistryElectrochemical Series40Choose the best answerStandard electrode potentials in the electrochemical series are arranged relative to the:ApH scaleBpKa scaleCpOH scaleDHydrogen reference scale Like 0 Discuss 0Share