MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Magnetic Properties#Transition Elements3281Choose the best answerThe paramagnetic behavior of molecules such as oxygen molecules cannot be explained by:AMolecular orbital theoryBHybridizationCValence bond theoryDValence shell electron pair repulsion theory Like 0 Discuss 0Share
Alkyl HalidesSN1 and SN2 Reactions3282Choose the best answerWhich feature is common to both SN₁ and SN₂ reactions?ANucleophilic substitutionBCarbocation formationCCarbocation rearrangementDFirst-order kinetics Like 0 Discuss 0Share
LiquidsMolecular Kinetic Energy3283Choose the best answerAt which temperature do water molecules have the greatest average kinetic energy?A100°CB110°CC0°CD90°C Like 0 Discuss 0Share
Nomenclature of Organic CompoundsNomenclature of Organic Compounds MCQs#Multiple-Bond Locants3284Choose the best answerWhen a double bond and a triple bond are equally distant from opposite ends of the parent chain, which bond receives the lower locant?AThe triple bond gets the lower locantBThe double bond gets the lower locantCThe longer chain is ignoredDA substituent gets the lower locant Like 0 Discuss 0Share
Alkyl HalidesReactivity of Alkyl Halides3285Choose the best answerThe increasing order of reactivity of methyl halides toward nucleophilic substitution is:ACH₃I < CH₃Br < CH₃Cl < CH₃FBCH₃F < CH₃Cl < CH₃Br < CH₃ICCH₃Br < CH₃Cl < CH₃I < CH₃FDCH₃Cl < CH₃F < CH₃I < CH₃Br Like 1 Discuss 0Share