ElectrochemistryFeasibility of Redox Reactions81Choose 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 Reactions82Choose 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
Sindh MDCAT 2021 Chemistry#Electrochemistry#Galvanization83Choose the best answerCoating of Zinc on iron is called:ASurface coatingBElectroplatingCGalvanizingDSheardizing Like 0 Discuss 0Share
ElectrochemistryElectrolytic Refining84Choose the best answerDuring electrolytic purification of copper, impure copper is made the:ACathodeBElectrolyteCAnodeDSalt bridge Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number85Choose the best answerThe oxidation states of nitrogen in NH₄NO₃ are:A−3 and +5B+5 and +3C−3 and −3D0 and +5 Like 4 Discuss 0Share2