Sindh MDCAT 2020 Chemistry#Electrochemistry#Oxidation81Choose the best answerDuring oxidation process, oxidation number of an element: (Sindh MDCAT 2020)ADecreasesBIncreasesCRemains constantDBoth A & B Like 0 Discuss 0Share
ElectrochemistryOxidation Number82Choose the best answerOxidation number of an element may be:APositiveBZero or fractionalCNegativeDAll of these Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Electrochemistry#Electrolysis83Choose the best answerWhen electricity is passed through water in the presence of an acid oxygen and ________ is produced. (Sindh MDCAT 2018)ACarbonBCOCCO₂DHydrogen Like 0 Discuss 0Share
ElectrochemistrySalt Bridge84Choose the best answerThe main function of a salt bridge in a voltaic cell is to:ACarry electrons between electrodesBStop movement of ionsCMix both half-cell solutions completelyDAllow ion migration to maintain electrical neutrality Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Downs Cell#Electrochemistry85Choose the best answerDown's cell is used to prepare: (Sindh MDCAT 2019)ASodium carbonateBSodium bicarbonateCSodium hydroxideDSodium metal Like 0 Discuss 0Share