StoichiometryMole#Mole Concept876Choose the best answerOne mole of carbon has a mass of 12 g, while one mole of magnesium has a mass of 24 g. One Mg atom is:AHalf as heavy as one C atomBEqual in mass to one C atomCTwice as heavy as one C atomDFour times as heavy as one C atom Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry877Choose the best answerWhat volume of CH₄ at STP (273 K and 1 atm) is required to react completely with 3.2 g O₂? CH₄ + 2O₂ → CO₂ + 2H₂OA4.48 LB2.24 LC1.12 LD0.56 L Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Fundamental Principles of Organic Chemistry#Wöhler's Synthesis878Choose the best answerQ.103 The first organic compound manufactured from inorganic compound was:AEthyl acetateBUreaCAcetic acidDMethane Like 0 Discuss 0Share
StoichiometryMass–Mass Stoichiometry879Choose the best answerWhat mass of CaCO₃ is required to produce 2.8 g CaO? CaCO₃ → CaO + CO₂A2.5 gB5.0 gC10 gD50 g Like 0 Discuss 0Share
Alkyl HalidesE2 Elimination880Choose the best answerWhich is NOT a characteristic of an E2 reaction?AOne-step mechanismBStrong base is generally requiredCCarbocation rearrangement occursDSecond-order kinetics Like 0 Discuss 0Share