SINDH MDCAT 2019 CHEMISTRY#Downs Cell#Electrochemistry91Choose the best answerDown's cell is used to prepare: (Sindh MDCAT 2019)ASodium carbonateBSodium bicarbonateCSodium hydroxideDSodium metal Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode92Choose the best answerWhen SHE is connected to a Cu²⁺/Cu half-cell under standard conditions, electron flow is from:AHydrogen electrode to copper electrodeBCopper electrode to hydrogen electrodeCHydrogen electrode to the electrolyte onlyDCuSO₄ solution to the hydrogen electrode Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Electrochemistry#Oxidation Numbers93Choose the best answerWhich species contain an element with an oxidation number of +4? (SZABMU MDCAT 2025)ACr₂O₇²⁻BMnO₄⁻CH₂SO₄DNa₂CO₃ Like 0 Discuss 0Share
ElectrochemistryElectrolysis of Aqueous Solutions94Choose the best answerDuring electrolysis of aqueous NaCl, the main product formed at the cathode is:AH₂BCl₂CO₂DNa Like 0 Discuss 0Share
ElectrochemistryCell Notation95Choose the best answerIn the cell notation Zn(s) | Zn²⁺(1 M) || Cu²⁺(1 M) | Cu(s), the double vertical line || represents the:ASalt bridgeBConcentrationCMetal electrodeDElectron Like 0 Discuss 0Share