ElectrochemistryRules of Oxidation Number51Choose the best answerThe most common oxidation state of halogens in their binary compounds is:A−1B+1C−2D0 Like 1 Discuss 0Share
ElectrochemistryOxidizing and Reducing Agents52Choose the best answerFor the reaction 2Na + Cl₂ → 2NaCl, which statement is correct?ANa is reduced and Cl₂ is oxidizedBCl₂ is the oxidizing agent and Na is the reducing agentCCl⁻ is the reducing agentDNo redox change occurs Like 0 Discuss 0Share
ElectrochemistryOxidation and Reduction53Choose the best answerDuring oxidation, the oxidation number of an element:ADecreasesBIncreasesCRemains constantDMust become zero Like 1 Discuss 0Share
ElectrochemistryStandard Electrode Potential54Choose the best answerWhich statement about standard electrode potential is incorrect?AIt is measured relative to a reference electrode such as SHEBIt is defined under standard conditionsCThe absolute potential of an isolated single electrode can be measured directlyDIt can be obtained by constructing an electrochemical cell Like 0 Discuss 0Share
ElectrochemistryDisproportionation Reaction55Choose the best answerThe reaction 3I₂ + 6NaOH → NaIO₃ + 5NaI + 3H₂O is classified as:AFree-radical reactionBPrecipitation reactionCSubstitution reactionDRedox reaction Like 1 Discuss 0Share