Chemical KineticsActivated Complex46Choose the best answerIn the pathway Reactants → Activated complex → Products, the activated complex has:AThe lowest energyBThe highest energyCThe same energy as the productsDThe same energy as the reactants Like 0 Discuss 0Share
Chemical KineticsPseudo-First-Order Reactions47Choose the best answerUnder usual acid-catalysed conditions, inversion of sucrose behaves as a:AZero-order reactionBPseudo-first-order reactionCSecond-order reactionDThird-order reaction Like 0 Discuss 0Share
Chemical KineticsReaction Mechanism and Intermediates48Choose the best answerFor the mechanism: Step 1: 2NO₂ → NO₃ + NO Step 2: NO₃ + CO → NO₂ + CO₂ Which species acts as an intermediate?ANO₂BNO₃CCODCO₂ Like 0 Discuss 0Share
Chemical KineticsOrder of Reaction49Choose the best answerFor a first-order reaction, which quantity remains constant during the reaction?AHalf-lifeBConcentration of reactantCRate of reactionDAmount of product formed Like 1 Discuss 0Share
Chemical KineticsThreshold Energy50Choose the best answerThe minimum total energy that colliding molecules must possess for an effective collision is called:AInternal energyBActivation energyCThreshold energyDHeat of reaction Like 0 Discuss 0Share