ElectrochemistryFeasibility of Redox Reactions61Choose the best answerWhich reaction is thermodynamically feasible under standard conditions?AZn²⁺ + Cu → Cu²⁺ + ZnBFe + CuSO₄ → FeSO₄ + CuCZn + MgSO₄ → ZnSO₄ + MgDCd + MgSO₄ → CdSO₄ + Mg Like 0 Discuss 0Share
ElectrochemistryFeasibility of Redox Reactions62Choose the best answerGiven: Zn → Zn²⁺ + 2e⁻ E°ox = +0.76 V Cu → Cu²⁺ + 2e⁻ E°ox = −0.34 V The spontaneous reaction is:ACu + Zn²⁺ → Cu²⁺ + ZnBCu²⁺ + Zn → Cu + Zn²⁺CCu²⁺ + Zn²⁺ → Cu + ZnDCu²⁺ + Zn²⁻ → Cu + Zn²⁺ Like 0 Discuss 0Share
ElectrochemistryAnode and Cathode Reactions63Choose 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
ElectrochemistryElectrolytic Refining64Choose the best answerDuring electrolytic purification of copper, impure copper is made the:ACathodeBElectrolyteCAnodeDSalt bridge Like 0 Discuss 0Share
ElectrochemistryRedox Reactions65Choose the best answerWhich is a complete redox reaction?ANaCl + AgNO₃ → NaNO₃ + AgClB2Na + Cl₂ → 2NaClC2Cl⁻ → Cl₂ + 2e⁻DNa⁺ + e⁻ → Na Like 0 Discuss 0Share