Chemical Kinetics

Bihar Board Class 12 · Chemistry · 33 past questions

1. Q1 2026 Set A2024 Set D2022 Set E

   Which of the following is not a first order reaction ?

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2. Q2 2026 Set A

   Which of the following represents the effect of temperature on reaction rate?

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3. Q3 2026 Set A

   For a reaction, $aA + bB \rightarrow$ products, $\frac{-d[A]}{dt}$ is equal to

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4. Q4 2026 Set A

   Radioactive decay is a

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5. Q5 2025 Set D

   The specific rate constant of a first order reaction depends upon

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6. Q6 2025 Set D

   The hydrolysis of ethyl acetate in the presence of dil. NaOH is a reaction of which order ?

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7. Q7 2025 Set D

   The temperature coefficient of most of the reactions lies between

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8. Q8 2025 Set D

   The expression of rate for a chemical reaction is, rate $= k[A][B]^n$; the order of reaction is

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9. Q9 2024 Set D

   The rate of reaction of a substance depends upon

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10. Q10 2024 Set D

    The unit of rate constant of a second order reaction is

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11. Q11 2024 Set D

    If the rate equation for a reaction is $\frac{dx}{dt} = k[H]^{1/2}[B]^{1/2}$, the order of reaction is

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12. Q12 2023 Set F

    The rate of chemical reaction, $2A + B \to C$ can be represented by which of the following ?

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13. Q13 2023 Set F

    The rate law equation of a chemical reaction is represented as Rate $= K[A][B]^2$. If the concentration of…

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14. Q14 2023 Set F

    The rate constant of a chemical reaction depends upon which of the following ?

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15. Q15 2023 Set F

    The half life of a first order reaction

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16. Q16 2022 Set E

    The rate of a chemical reaction

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17. Q17 2022 Set E

    The chemical reaction, $2O_3 \longrightarrow 3O_2$ proceeds as follows…

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18. Q18 2022 Set E

    The temperature coefficient of most of the reactions lies between which of the following?

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19. Q19 2021 Set A

    The rate of zero order reaction $A + B \longrightarrow C$ is

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20. Q20 2021 Set A

    The unit of rate and rate constant is same for the reaction of which order ?

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21. Q21 2021 Set A

    The minimum amount of energy required to convert reactant molecules into products is

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22. Q22 2021 Set A

    The rate constant for first order reaction is 0.0005 min$^{-1}$. Calculate its half life.

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23. Q23 2018

    If $\frac{dx}{dt} = k[H^+]^n$ and rate becomes 100 times when pH changes from 2 to 1, the order of reaction…

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24. Q24 2018

    Half life period of first order reaction is 10 minutes. Calculates the rate constant of the reaction.

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25. Q25 2018

    Describe the kinetics of a first order reaction. Why a first order reaction is never completed?

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26. Q26 2017

    The rate at which a substance reacts, depends upon its-

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27. Q27 2017

    For a zero order reaction –

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28. Q28 2017

    A catalyst is a substance which -

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29. Q29 2016

    $t_{1/2}$ for first order reaction is

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30. Q30 2016

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31. Q31 2016

    Define the following…

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32. Q32 2015

    If the rate of a reaction is expressed by, Rate = K [A]$^2$[B], then the order of reaction will be

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33. Q33 2015

    If in a chemical reaction A + B $\to$ product, rate law is given by $R = K[A]^{1/2}[B]^{3/2}$, find the order…

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