LiquidsEvaporation and Intermolecular Forces191Choose the best answerWhich process involves overcoming or weakening intermolecular attractions?ACondensationBFreezingCCrystallizationDEvaporation Like 0 Discuss 0Share
Chemical BondingElectron-Pair Repulsions192Choose the best answerWhich pair of molecules contains two lone pairs on the central atom and therefore shows the maximum variety of electron-pair repulsions?AH₂O onlyBH₃O⁺ onlyCH₂S onlyDH₂O and H₂S Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory193Choose the best answerWhat does the Greek word “atomos” mean?AIndivisibleBElectrically neutralCInfinitely smallDChemically inert Like 0 Discuss 0Share
Sindh MDCAT 2021 Chemistry#Benzene & Aromatic Compounds#Orientation Effect194Choose the best answerWhich one of the following is a meta directing group:A-NH₂B-CH₃C-NO₂D-OH Like 0 Discuss 0Share
Chemistry of HydrocarbonsHydration of Alkynes195Choose the best answerThe immediate product formed during acid-catalysed hydration of an alkyne is:AAlkaneBEnolCAlkyl halideDEther Like 0 Discuss 0Share