Chemical KineticsArrhenius Plot and Activation Energy766Choose the best answerFor a plot of log k against 1/T, the magnitude of slope × 2.303R equals:AThreshold energyBFrequency factorCInternal energyDActivation energy Like 0 Discuss 0Share
ElectrochemistryStandard Cell Potential767Choose the best answerGiven: Ag⁺ + e⁻ → Ag E° = +0.80 V Al³⁺ + 3e⁻ → Al E° = −1.67 V The standard cell potential is:A+2.47 VB+0.87 VC−0.87 VD+5.81 V Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Permanganate Preparation#Transition Elements768Choose the best answerQ.89 Oxidation of K₂MnO₄ by Cl₂ is to manufacture:AK₂CrO₄BMnO₂CK₂Cr₂O₄DKMnO₄ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules769Choose the best answer4.6 g C₂H₅OH and 3.0 g C₂H₆ contain:ADifferent numbers of moleculesBDifferent masses of carbonCEqual numbers of moleculesD0.2 mol oxygen atoms in each Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Alkyl Halides#SN2 Reaction770Choose the best answerAlkyl halides involving C–X bond breakage and C–Nu bond formation? (Sindh MDCAT 2020)ASN₁BSN₂CE1DE2 Like 0 Discuss 0Share