Chemical Kinetics

CBSE Class 12 · Chemistry · 39 past questions

12 of 39 · show all

1. Q7 2026

   Following reaction takes place in one step…

   Try it →
2. Q8 2026

   For the first order thermal decomposition reaction, following data was obtained…

   Try it →
3. Q12 2026

   The half-life period of a radioactive element is $1{\cdot}5\times10^{10}$ years. Calculate the time in which…

   Try it →
4. Q18 2025

   A certain reaction is 50% complete in 20 minutes at 300 K and the same reaction is 50% complete in 5 minutes…

   Try it →
5. Q22 2024

   The rate of a gaseous reaction triples when temperature is increased from 17°C to 27°C. Calculate the energy…

   Try it →
6. Q25 2024

   A first-order reaction is 25% complete in 40 minutes. Calculate the value of rate constant. In what time will…

   Try it →
7. Q28 2024

   The following initial rate data were obtained for the reaction…

   Try it →
8. Q31 2023

   A first order reaction is 50% complete in 30 minutes at 300 K and in 10 minutes at 320 K. Calculate…

   Try it →
9. Q34 2023

   A chemical reaction…

   Try it →
10. Q35 2023

    The rate of a reaction doubles when temperature changes from 27°C to 37°C. Calculate energy of activation for…

    Try it →
11. Q37 2023

    Assertion (A) : The molecularity of the reaction H$_2$ + Br$_2$ $\longrightarrow$ 2HBr appears to be 2.…

    Try it →
12. Q39 2022

    A first order reaction is 50% complete in 40 minutes. Calculate the time required for the completion of 90%…

    Try it →