XI Chemistry Chemical Kinetics Online Test Mdcat-2024

XI Chemistry Chemical Kinetics Online Test Mdcat
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Instructions for Chapter Chemical Kinetics Online Test Mdcat-2024:

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    Test Details:

      • Subject: Chemistry
      • Class: 1st year or 11
      • Chapter name: Chemical Kinetics
      • Test: MDCAT 2024
      • Book: Sindh Textbook
      • Total No. Of MCQS: 50
      • Time Allowed: 50 Minutes
      • Price : Free
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      XI Chemistry Chemical Kinetics Online Test Mdcat-2024

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      1. Chemical Kinetics can be defined as:

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      2. What is the unit of the rate of a chemical reaction?

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      3. What does the rate law of a reaction express?

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      4. In the rate law Rate = k[A][B], if the concentration of A is doubled and the concentration of B is halved, how does the rate change?

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      5. What does the term "reaction order" refer to in a rate law?

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      6. The rate constant of a reaction is found to be 0.05 L·mol־¹·s־¹. What is the reaction order?

      7 / 51

      7. If the rate of a reaction is given by Rate = k[A][B]², how does the rate change if [A] is increased by a factor of 3 and [B] is increased by a factor of 2?

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      8. Which of the following statements is true about the rate constant (k) in the rate law expression?

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      9. What is the order of a reaction if the rate law is given by Rate = k[A][B]²?

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      10. Unit of rate constant for zero order reaction is same as

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      11. Unit of rate constant for first order reaction is

      12 / 51

      12. Photoelectric effect is a

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      13. Rate determining step can be observed in

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      14. In a reaction between Nitrogen dioxide and Carbon monoxide, following statements cannot  be true

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      15. Rate of reaction is affected by nature of reactants because of their

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      16. How does the bond strength of reactants affect the rate of a reaction?

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      17. How does increasing the concentration of a reactant generally affect the rate of a chemical reaction?

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      18. For a reaction where the rate law is Rate = k[A]², if the concentration of A is tripled, by what factor does the rate of reaction change?

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      19. In a first-order reaction, what happens to the rate of reaction if the concentration of the reactant is doubled?

      20 / 51

      20. If the concentration of all reactants in a reaction is doubled, and the reaction rate increases by a factor of 8, what is the order of the reaction with respect to the reactants?

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      21. Which factor does NOT affect the rate of a chemical reaction?

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      22. How does increasing the temperature generally affect the rate of a reaction?

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      23. Which of the following statements is true about the effect of surface area on the rate of a reaction?

      24 / 51

      24. Increase in temperature increases the reaction rates of all:

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      25. With the increase of 10°C temperature the rate of reaction doubles.This increase in rate of reaction is due to

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      26. The experimental relationship between a reaction rate and the concentration of the reactants is called

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      27. For a reaction

      H₂(g) + Br₂(g) -----> 2HBr(g)

      The experimental data suggests Rate = K [H₂][Br₂]½.

      What will be the order of reaction?

      28 / 51

      28. According to collision theory, which of the following conditions must be met for a reaction to occur?

      29 / 51

      29. What is the transition state in a chemical reaction?

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      30. Which of the following statements best describes activation energy?

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      31. Which type of catalyst is involved in the same phase as the reactants?

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      32. Catalyst used in oxidation of Chloroform is _____ and it's nature is___

      33 / 51

      33. Which of the following is an example of acid catalysis?

      34 / 51

      34. A reaction involving two different reactants can never be:

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      35. At low temperature, the reaction, CO(g) + NO2(g) = CO2(g) + NO(s) is zero order in CO and second order in NO2. The rate law is, rate =

      36 / 51

      36. The rate of reaction when the concentration of reactants are takes as unity is called

      37 / 51

      37. All of the following statements about type of catalysis are correct EXCEPT:

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      38. How does a negative catalyst affect a chemical reaction?

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      39. In the decomposition of hydrogen peroxide, which substance can act as a negative catalyst to slow down the reaction?

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      40. In the Haber’s process for the formation of NH3, why Fe catalyst is finely divided:

      41 / 51

      41. Which of the following does not influence the rate of a reaction?

      42 / 51

      42. In some reactions a product formed acts as a catalyst. This phenomenon is called

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      43. For the reaction 4A + B------> 2C + 2D, which of the following statements is not correct?

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      44. In the fermentation of sugarcane into commercial alcohol which enzymes are used

      45 / 51

      45. Negative catalyst are also called as

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      46. Which of the following best defines heterogeneous catalysis?

      47 / 51

      47. Examples of zero order reaction

      48 / 51

      48. Ionic reactions are classified into

      49 / 51

      49. The best alternative tern for the velocity of the reaction is

      50 / 51

      50. In a multi step reaction the rate determining step is always

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      51. A substance which increase the rate of reaction without being consumed during the reaction is called

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