UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Electron Affinity#Periodic Trends1456Choose the best answerWhy is the electron affinity of fluorine lower than that of chlorine? (UHS MDCAT 2023)AFluorine has low electronegativityBIts small 2p shell has greater electron–electron repulsionCFluorine has fewer valence electronsDFluorine has a larger atomic size Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Aldehydes and Ketones#Reactions of Acetone1457Choose the best answerQ.71 Acetone gives:AFehling solution test positiveBSilver mirror test positiveCLucas test positiveDIodoform test positive Like 0 Discuss 0Share
StoichiometryLimiting Reagent1458Choose the best answerWhich statement about a limiting reagent is FALSE?AIt is completely consumedBIt limits the amount of product formedCIt is always the reactant with the smaller initial massDIts complete consumption stops further product formation Like 0 Discuss 0Share
BasicsStoichiometry #Physical and Chemical Changes1459Choose the best answerWhich change leaves the chemical composition of a substance unchanged?APhysical changeBChemical changeCNuclear changeDAtomic change Like 0 Discuss 0Share
Chemistry of HydrocarbonsPhysical Properties of Hydrocarbons1460Choose the best answerWhich statement best describes the physical state of higher members of a hydrocarbon homologous series?AThey remain gases regardless of chain length.BIncreasing molecular size can eventually change members from gases to liquids and then solids.CAll C₁₆ hydrocarbons must be solids.DMolecular structure has no effect on physical state. Like 0 Discuss 0Share