Atomic StructureIsotopes1336Choose the best answerIsotopes of an element generally have:ASimilar chemical properties but different physical propertiesBSimilar chemical and physical propertiesCSimilar physical properties but different chemical propertiesDDifferent chemical and physical properties Like 0 Discuss 0Share
Chemical KineticsForward and Reverse Activation Energies1337Choose the best answerFor the exothermic reaction H₂ + Cl₂ → 2HCl, ΔH < 0. If Ef and Er are the forward and reverse activation energies, respectively:AEf > ErBEf < ErCEf = ErDΔH is unrelated to Ef and Er Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Macromolecules#Polymers1338Choose the best answerWhich statement correctly differentiates addition polymerization from condensation polymerization?AAddition polymerization always needs two different monomersBCondensation polymerization never needs a catalystCAddition polymerization occurs without elimination of small moleculesDCondensation polymerization involves only free radicals Like 0 Discuss 0Share
StoichiometryRelative Atomic Mass1339Choose the best answerThe mass of an atom compared with 1/12 of the mass of a ¹²C atom is called:AOne moleBGram atomic massCAtomic numberDRelative atomic mass Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Enthalpy#Thermochemistry & Thermodynamics1340Choose the best answerThe change in heat energy of a chemical reaction at constant temperature and pressure is called: (Sindh MDCAT 2019)AEnthalpy changeBHeat of sublimationCInternal energy changeDHeat of formation Like 0 Discuss 0Share