ElectrochemistryElectrolysis of Molten Salts56Choose 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
ElectrochemistryElectrochemical Series and Metal Reactivity57Choose the best answerCoinage metals such as Cu, Ag and Au are relatively unreactive because they generally have:AStrongly negative reduction potentialsBStrongly positive oxidation potentialsCPositive reduction potentialsDZero reduction potentials Like 0 Discuss 0Share1
ElectrochemistryElectron Transfer and Oxidation Number Change58Choose the best answerWhich change involves transfer of five electrons per Mn atom?AMnO₄²⁻ → MnO₂BCrO₄²⁻ → Cr³⁺CMnO₄⁻ → Mn²⁺DCr₂O₇²⁻ → 2Cr²⁺ Like 0 Discuss 0Share
ElectrochemistryOxidation and Reduction59Choose 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
ElectrochemistryFactors Affecting Cell Potential60Choose the best answerThe potential of an electrochemical cell may depend on:ATemperatureBIon concentrationsCNature of the electrolyte and reacting speciesDAll of these Like 0 Discuss 0Share