XiMDCAT XI Complete Chemistry Grand Test#Activation Energy#Chemical Kinetics31Choose the best answerWhich statement is correct for the energy-profile graph shown?AThe activation energy of the forward reaction is E₁ + E₂ and the product is more stable than the reactant.BThe activation energy of both forward and backward reactions is E₁ + E₂ and the reactant is more stable than the product.CThe activation energy of the backward reaction is E₁ and the product is more stable than the reactant.DThe activation energy of the forward reaction is E₁ + E₂ and the product is less stable than the reactant. Like 0 Discuss 0Share
Chemical kinetics #Rate Constant32Choose the best answerWhich statement about the rate constant, k, is correct?AIt is independent of temperature.BIt depends only on the initial concentration of reactants.CIts value changes with temperature but not with reactant concentration.DIt is equal to the reaction rate. Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Chemical Kinetics#Rate Constant33Choose the best answerUnit of rate constant for a particular reaction depends upon the: (BUMHS MDCAT 2025)Atemperature of reactionBactivation energy of reactionCmolecularity of reactionDorder of reaction Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Chemical Kinetics#Rate Constant34Choose the best answerK is called specific rate constant because it is: (IBA MDCAT 2025)ARate per unit concentrationBTemperature independentCDepends on concentrationDUnitless Like 0 Discuss 0Share
Chemical kinetics #Rate Law35Choose the best answerFor 2A + B → products, the experimental rate law is Rate = k[A][B]. Which statement is correct?AThe reaction is elementary.BThe reaction is first order with respect to A.CThe stoichiometric coefficient of A must be 1.DThe overall order of the reaction is 3. Like 0 Discuss 0Share