Ch-11 Reaction kinetics Leave a Comment / By abdulslambsn@gmail.com / October 6, 2025 Welcome To Your Quiz "Ch-11 Reaction kinetics" Click on "Start Quiz" To Continue... 1. In zero order reaction, the rate is independent of: Temperature of reaction Concentration of reactants Concentration of product None of these None 2. The order of reaction of O3 + NO ----> NO2 + O2 is: 1 2 3 0 None 3. Decomposition of nitrogen pentaoxide has order of reaction: Zero First Second Third None 4. The catalyst used for the reaction HCOOH -----> H2+CO2 is: Copper Alumina Silica Iron None 5. Sugar solution hydrolyses to glucose and fructose in the presence of enzyme: Urease Invertase Zymase None None 6. If 75% of any given amount of radioactive element disintegrates in 60 minutes the half life radioactive element is: 20 minutes 30 minutes 40 minutes 25 minutes None 7. With increase of 10°C temperature, the rate of reaction becomes double. This increase in rate of reaction is due to: Decrease in the activation energy of reaction Decrease in number of collision between the molecules Increase in activation energy of reactants Increase in number of effective collision None 8. If the rate equation of reaction 2 A + B → Product Rate = k [A]² [B] and A is present in large excess, then order of reaction is: 1 2 3 None None 9. The energy of activated complex is: Greater than the reactants and products Less than the reactants and products Equal to the products Equal to the reactants None 10. Indicate the enzyme which catalyses the following: C6H1206 ----> 2C2H5OH+2CО2 Diastase Zymase Urease Invertase None 11. Which of following is an example of homogenous catalysis? Formation of ghee from oil Formation of SO3 in contact process Hydrolysis of ester Formation of NH3 in Haber process None 12. Hydrolysis of Tertiary butyl bromide has order of reaction: First order Pseudo first order Second order Third order None 13. If the rate of decay of radioactive isotope decreases from 200 cpm to 25 cpm after 24 hours.What is its half life: 3 hours 4 hours 6 hours 8 hours None 14. The rate of reaction between two specific time intervals is called: Rate of reaction Average rate Instantaneous rate None None 15. The half life of zero order reaction is: Proportional to initial concentration of reactants Independent of initial concentration of reactant Inversely proportional to initial concentration of reactant None of these None 16. Photo chemical reactions are: Zero order First order Second order Third order None 17. The energy of activation for a reaction by using catalyst is: Increased Decreased Not changed Moderate None 18. Which type of metals are usually used as catalyst: Coinage metal Alkali metals Transition metals Alkaline earth metals None 19. Which technique is used to determine the absorption of radiations: Spectrometry Dilatometric method Refractrometric method Optical rotation method None 20. Which property of a liquid is measured by polarimeter: Conductance Refractive index Optical activity Change in volume None 21. In specified conditions the rate of consumption of N2O5 in the reaction 2N2O5 ----> 4NO2 + O2 is 0.5 mol N2O5 L-1.S-1. The rate of formation of NO2 is 0.5 4 2 1 None 22. A substance which increases the efficiency of a catalyst is termed as: Promoter Activator Retarder Super catalyst None 23. The number of atoms or molecules whose concentration determines the rate of a chemical reaction is called the molecularity of the reaction order of the reaction specific activity of the reaction rate constant of the reaction None 24. The rate of chemical reaction depends upon the nature of reactants because? Some of the reactants have high boiling point Some of the reactants are colored Energy of activation differs from one reaction to another Some of the reactants are solid at room temperature None 25. The rate of chemical reaction is independent of: Molecularity Temperature Nature of reactants Concentration of reaction None 26. Larger the surface area of the reactant molecules: Lower will be the rate of reaction Higher will be the rate of reaction The rate of reaction remains unaffected The rate may increase or decrease None 27. The minimum amount of energy required for an effective collision is called: Activation energy Internal energy Translational energy None None 28. None 29. None 1 out of 6 Thanks For Taking This Quiz - Please See Your Answers/Results Below After Entering Your Name & Email... Name Email Time's up
