UHS MDCAT 2024 Chemistry#Electrochemistry#Oxidation Number41Choose the best answerWhich step is irrelevant with respect to balancing of redox equations by oxidation number method?ASplit the reaction into two half reactionsBAssign oxidation number to all the atoms involved in the equationCIdentify the element undergoing a change in oxidation numberDEqualize the number of electrons lost and gained Like 0 Discuss 0Share
ElectrochemistryRedox Reactions42Choose the best answerWhich is a complete redox reaction?ANaCl + AgNO₃ → NaNO₃ + AgClB2Na + Cl₂ → 2NaClC2Cl⁻ → Cl₂ + 2e⁻DNa⁺ + e⁻ → Na Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode43Choose the best answerThe standard electrode potential of the standard hydrogen electrode at 298 K is:A+1.00 VB+0.10 VC0.00 VD+10.0 V Like 0 Discuss 0Share
ElectrochemistryCalculation of Oxidation Number44Choose the best answerThe oxidation number of sulfur in SO₄²⁻ is:A−8B−6C+8D+6 Like 0 Discuss 0Share
ElectrochemistryOxidizing and Reducing Agents45Choose the best answerIn which reaction does H₂ act as an oxidizing agent?AH₂ + Cl₂ → 2HClBC₂H₄ + H₂ → C₂H₆C2Na + H₂ → 2NaHDN₂ + 3H₂ → 2NH₃ Like 0 Discuss 0Share