ElectrochemistryRules and Exceptions of Oxidation Number31Choose the best answerThe oxidation state of oxygen in KO₂ is:A−1/2B−2C−1D−3 Like 1 Discuss 0Share
ElectrochemistryOxidation and Reduction32Choose the best answerDuring oxidation, the oxidation number of an element:AIncreasesBDecreasesCAlways becomes zeroDRemains unchanged Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Dry Cell#Electrochemistry33Choose the best answerThe outer cell of a dry cell is typically composed of: (MDCAT Reconduct 2023)AIronBLeadCCopperDZinc Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Downs Cell#Electrochemistry34Choose the best answerQ.117 Down cell is for the:AMetallurgy of NaBMetallurgy of MgCMetallurgy of AlDMetallurgy of Fe Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Electrochemistry#Electrode Potential35Choose the best answerThe order of ease of reduction of H⁺, Cu²⁺ and Ag⁺:AH⁺ > Cu²⁺ > Ag⁺BH⁺ > Ag⁺ > Cu²⁺CAg⁺ > Cu²⁺ > H⁺DH⁺ > Cu²⁺ = Ag⁺ Like 0 Discuss 0Share