UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Activation Energy#Chemical Kinetics81Choose the best answerAmount of energy needed to weaken the existing bonds to an extent that can be broken through collision is called:ABond energyBActivation energyCAverage energyDEnthalpy Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Activation Energy#Chemical Kinetics82Choose the best answerThe reaction 2CO + O₂ → 2CO₂ proceeds slower because of activation energy of CO. (Sindh MDCAT 2018)AequilibriumBconstantClowDhigh Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Chemical Kinetics#Rate Law83Choose the best answerFor Rate = k[A]²[B], what happens to the rate if [A] is doubled and [B] is halved?AHalf of the original rateBEqual to the original rateCTwice the original rateDFour times the original rate Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Activation Energy#Chemical Kinetics84Choose the best answerThe activation energy of a reaction is usually: (BUMHS MDCAT 2025)AUnaffected by the process of a catalyst.BLow for the reaction that takes place slowly.CDifferent for the forward and backward reaction.DIncreases with rise in temperature. Like 1 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Kinetics#Surface Area and Reaction Rate85Choose the best answerQ.88 Pulverized CaCO₃ reacts faster because of the increase in:APressureBSurface areaCVolumeDSurface tension Like 0 Discuss 0Share