GasesAverage Kinetic Energy of Gases501Choose the best answerAt the same temperature, the average molar kinetic energies of CO and N₂ are:AKE(CO) < KE(N₂)BKE(CO) = KE(N₂)CKE(CO) > KE(N₂)DDependent on their molar masses Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Chemical Bonding#Molecular Geometry502Choose the best answerThe shape of an ammonia molecule is:AAngularBTetrahedralCLinearDPyramidal Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules503Choose the best answerWhich sample contains the greatest number of H₂O molecules?A18 mL liquid waterB0.18 g waterC0.00224 L water vapour at 273 K and 1 atmD4 × 10⁻³ mol water Like 0 Discuss 0Share
Alkyl HalidesStereochemistry of SN1 Reaction504Choose the best answerAn SN₁ reaction at a chiral centre usually gives:AComplete retention onlyBPartial racemization, often with more inversion than retentionCComplete retention of configurationDComplete inversion only Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Alloys#Transition Elements505Choose the best answerWhich elements are typically alloyed to produce stainless steel? (MDCAT Reconduct 2023)AFe, Co, MoBFe, Ti, MnCFe, Cr, NiDFe, Al, Cu Like 0 Discuss 0Share