Alkyl HalidesStereochemistry of SN1 Reaction476Choose 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 Elements477Choose 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
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Chemical Equilibrium#pH478Choose the best answerThe pH value of human blood is:A7.80B7.35C7.33D6.62 Like 0 Discuss 0Share
GasesDensity of Gases#Gas Density479Choose the best answerAt which condition is the density of NH₃ greatest?A1 atm, 500°CB2 atm, 300°CC3 atm, 200°CD4 atm, 100°C Like 3 Discuss 0Share
GasesRoot Mean Square Speed480Choose the best answerFor a fixed gas, the root mean square speed is proportional to:ATB√TC1/TDT² Like 0 Discuss 0Share