MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Electrochemistry#Redox Reactions56Choose the best answerWhich of the following is not a redox reaction? (IBA MDCAT Reconduct 2024)ACaCO₃ → CaO + CO₂BFe²⁺ → Fe³⁺C2H₂ + O₂ → 2H₂ODCu²⁺ + 2e⁻ → Cu Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Electrochemistry#Electrolysis57Choose the best answerQ.92 In Castner Kellner cell:ANaOH + H₂ are produced at cathodeBCl₂ is produced at anodeCNaOH + H₂ are produced at anodeDNaOH + H₂ are produced at cathode & Cl₂ is produced at anode Like 0 Discuss 0Share
ElectrochemistryRules of Oxidation Number58Choose 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 Agents59Choose 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 Reduction60Choose the best answerDuring oxidation, the oxidation number of an element:ADecreasesBIncreasesCRemains constantDMust become zero Like 1 Discuss 0Share