Chemistry of HydrocarbonsFree-Radical Halogenation of Alkanes1066Choose the best answerWhich step regenerates Cl• and therefore propagates the chlorination chain?ACl₂ → 2Cl•BCH₃• + Cl₂ → CH₃Cl + Cl•CCH₃• + CH₃• → C₂H₆DCl• + Cl• → Cl₂ Like 1 Discuss 0Share
Atomic StructureMass Spectrometry1067Choose the best answerIsotopes of an element are recorded separately by a:AMass spectrometerBSpectrophotometerCCalorimeterDIR spectrophotometer Like 0 Discuss 0Share
Alkyl HalidesSN1 and SN2 Reactions1068Choose the best answerSecondary alkyl halides can undergo:ASN₁ onlyBSN₂ onlyCNeither SN₁ nor SN₂DBoth SN₁ and SN₂ depending on conditions Like 0 Discuss 0Share
GasesFree Expansion of an Ideal Gas1069Choose the best answerAn ideal gas undergoes free expansion into a vacuum. Its temperature does not decrease because ideal-gas molecules:AAre always above the inversion temperatureBHave no intermolecular attractive forcesCLose kinetic energy during collisionsDPerform maximum external work Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Bonding#Hybridization1070Choose the best answerQ.79 Ethene (H₂C = CH₂) has hybridization of C-atom:Adsp³BspCsp³Dsp² Like 0 Discuss 0Share