KMU MDCAT 2024 Chemistry#Percentage Yield#Stoichiometry1051Choose the best answerHeating 24.8g of copper carbonate (CuCO₃) in a crucible produced only 13.9g of copper oxide (CuO). What is the percentage yield of copper oxide? (KMU MDCAT 2024)A81.79%B83.98%C86.87%D89.68% Like 0 Discuss 0Share
Chemical KineticsOrder of Reaction1052Choose the best answerFor a first-order reaction, which statement about its half-life is correct?AIt increases as the reaction proceedsBIt decreases with timeCIt remains constant during the reactionDIt depends directly on the initial concentration Like 3 Discuss 0Share
UHS MDCAT 2024 Chemistry#Chemical Bonding#Coordinate Bond1053Choose the best answerWhich of the following has a coordinate bond?ANaClBCaOCNH₃BF₃DH₂O Like 0 Discuss 0Share
Chemistry of HydrocarbonsFriedel–Crafts Alkylation1054Choose the best answerFriedel–Crafts alkylation of benzene can be carried out using:AC₆H₆ + CH₃Cl + AlCl₃BC₆H₆ + CH₄CC₆H₆ + NH₃DC₆H₆ + CH₃COCl without distinguishing acylation Like 1 Discuss 0Share
Chemical BondingIonic Formula and Charge Balance1055Choose the best answerA cation M²⁺ combines with an anion A³⁻. The formula of the neutral compound is:AM₂ABM₃A₂CMA₂DM₂A₃ Like 0 Discuss 0Share