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Friday, 9 October

JEE Main Chemistry · Chemical Kinetics

Arrhenius Equation in JEE Main

Arrhenius Equation (Chemistry, Chemical Kinetics) came 15 times in 15 of the 42 JEE Main shifts Lumi analysed, across 8 distinct ideas. 7 of them came in 2024–26; it was last asked in 2026.

Questions
15
in 15 shifts
Ideas asked
8
4 asked more than once
Numerical answer
8
53% of its questions
Pattern
Asked most years
last asked 2026
Questions each year
0241’173’200’212’222’231’243’253’26

In the shifts Lumi analysed for each year.

Difficulty and format
Easy 5Medium 10Hard 0

Format

  • Numerical value8 Q
  • Diagram based3 Q
  • Single correct2 Q
  • Two statements1 Q
  • Other1 Q
Ideas inside the topic
8 ideas
Where it sits

Part of Chemical Kinetics, which had 48 questions in all. Arrhenius Equation accounts for 31% of them. In Lumi's JEE taxonomy it belongs to Physical Chemistry.

Some questions sit in other chapters too: Surface Chemistry.

Every question

All 15 Arrhenius Equation questions

Newest first, each with its options and official answer.

  1. 2 Apr 2026, Shift 1 · Q74For reaction A→P\mathrm{A\rightarrow P}, rate constant k=1.5×103 s−1k=1.5\times10^3\ \mathrm{s^{-1}} at 27∘27^\circC If activation energy for the above…MediumNumerical value
  2. 6 Apr 2026, Shift 2 · Q75Decomposition of a hydrocarbon follows the equation k=(5.5×1011 s−1) e−28000 KTk=(5.5\times10^{11}\,\mathrm{s^{-1}})\,e^{\frac{-28000\,\mathrm{K}}{T}}. The…EasyNumerical value
  3. 8 Apr 2026, Shift 2 · Q57Given below are two statements : R=8.314 J K−1 mol−1R = 8.314\ \mathrm{J\,K^{-1}\,mol^{-1}} and 1 cal = 4.2 J Statement I : When Ea = 12.6 kcal/mol, the…MediumTwo statementsHas a figure
  4. 2 Apr 2025, Shift 2 · Q56Reactant A converts to product D through the given mechanism (with the net evolution of heat) : A→BA \rightarrow B slow; ΔH=+\Delta H = +ve…MediumDiagram basedHas a figure
  5. 3 Apr 2025, Shift 2 · Q57Consider the following statements related to temperature dependence of rate constants. Identify the correct statements. A. The Arrhenius…MediumOther
  6. 4 Apr 2025, Shift 2 · Q55Consider the following plots of log of rate constant k (log k) vs 1T\frac{1}{T} for three different reactions. The correct order of…EasyDiagram basedHas a figure
  7. 29 Jan 2024, Shift 1 · Q87For a reaction taking place in three steps at same temperature, overall rate constant K=K1K2K3K=\frac{K_1K_2}{K_3}. If Ea1Ea_1, Ea2Ea_2 and Ea3Ea_3…MediumNumerical value
  8. 6 Apr 2023, Shift 1 · Q87For the adsorption of hydrogen on platinum, the activation energy is 30 kJ mol−1^{-1} and for the adsorption of hydrogen on nickel, the…MediumNumerical value
  9. 8 Apr 2023, Shift 2 · Q63The correct reaction profile diagram for a positive catalyst reaction.EasyDiagram basedHas a figure
  10. 24 Jun 2022, Shift 1 · Q85The rate constants for decomposition of acetaldehyde have been measured over the temperature range 700−1000700-1000 K. The data has been…EasyNumerical valueHas a figure
  11. 29 Jun 2022, Shift 1 · Q85The activation energy of one of the reactions in a biochemical process is 532611 J mol−1532611\ \mathrm{J\ mol^{-1}}. When the temperature falls from…MediumNumerical value
  12. 8 Jan 2020, Shift 1 · Q27The rate of a certain biochemical reaction at physiological temperature (T) occurs 10610^6 times faster with enzyme than without. The…MediumSingle correct
  13. 9 Jan 2020, Shift 2 · Q48A sample of milk splits after 60 min. at 300 K and after 40 min. at 400 K when the population of lactobacillus acidophilus in it doubles.…MediumNumerical value
  14. 6 Sep 2020, Shift 2 · Q48The rate of a reaction decreased by 3.555 times when the temperature was changed from 40 °C to 30 °C. The activation energy (in kJ…MediumNumerical value
  15. 2 Apr 2017 (offline) · Q39Two reactions R1R_1 and R2R_2 have identical pre-exponential factors. Activation energy of R1R_1 exceeds that of R2R_2 by 10 kJ…EasySingle correct