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Class 12 Chemistry Practice Test: Chemical Kinetics - Integrated Rate Equations
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Class 12 Chemistry Practice Test: Chemical Kinetics - Integrated Rate Equations
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15 Questions

1. What is the time required for 75 percent completion of a first-order reaction?
2. For the reaction X → Y + Z, the rate constant is 0.00058 s-1. What percentage of X will be decomposed in 50 minutes?
3. The rate constant of a reaction is 0.01s-1, how much time does it take for 2.4 mol L-1 concentration of reactant reduced to 0.3 mol L-1?
4. The rate constant of a reaction is 0.01s-1, how much time does it take for 2.4 mol L-1 concentration of reactant reduced to 0.3 mol L-1?
5. What time does it take for reactants to reduce to 3/4 of initial concentration if the rate constant is 7.5 x 10-3 s-1?
6. What is the integrated rate equation for a first order reaction?
7. A first-order reaction is 50 percent complete in 30 minutes. Calculate the time taken for completion of 87.5 percent of the reaction.
8. What is the formula to calculate the time taken for the completion of a zero-order reaction?
9. The decomposition of N2O5 in CCl4 solution was studied. N2O5 → 2NO2 + 1/2O2. The rate constant of the reaction is 6.2 x 10-4 sec-1. Calculate the rate when the concentration of N2O5 is 1.25 molar.
10. What time does it take for reactants to reduce to 3/4 of initial concentration if the rate constant is 7.5 x 10-3 s-1?
11. The decomposition of N2O5 in CCl4 solution was studied. N2O5 → 2NO2 + 1/2O2. The rate constant of the reaction is 6.2 x 10-4 sec-1. Calculate the rate when the concentration of N2O5 is 1.25 molar.
12. The unit of rate constant of a first-order reaction is s-1.
13. What is the integrated rate equation for a first order reaction?
14. A zero-order reaction is 25% complete in 30seconds. What time does it take for 50% completion?
15. A first-order reaction was 70 percent complete in 20 minutes. What is the rate constant of the reaction?

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