Chemical KineticsOrder of Reaction51Choose 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
SINDH MDCAT 2019 CHEMISTRY#Chemical Kinetics#Rate Law52Choose the best answerA catalyst increases the rate of reaction by: (Sindh MDCAT 2019)Adecreasing the activation energyBdecreasing the concentration of reactantsCdecreasing the temperatureDincreasing the temperature Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Kinetics#Rate Law53Choose the best answerQ.83 Rate of reaction increases by the addition of catalyst because:ACatalyst reacts with reactantBCatalyst reacts with productCEnergy of activation decreasesDEnergy of activation increases Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Chemical Kinetics#Rate Law54Choose the best answerFor the elementary reaction 2A ⇌ B, the forward reaction rate is proportional to:A[A]B[A]²C[B]D[B]² Like 0 Discuss 0Share
UHS MDCAT 2024 Chemistry#Chemical Kinetics#Rate Law55Choose the best answerIf a reaction rate does not change with concentration then it is:A3rd orderB2nd orderC1st orderDZero order Like 1 Discuss 0Share