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Friday, 9 October

JEE Main 2025 · ChemistryMultiple choiceOtherMediumConceptual

JEE Main 3 April 2025, Shift 2, Chemistry Q57

Question 57 of 75 in this shift, Chemistry question 7 of 25, Section A.

Consider the following statements related to temperature dependence of rate constants. Identify the correct statements. A. The Arrhenius equation holds true only for an elementary homogeneous reaction. B. The unit of A is same as that of k in Arrhenius equation. C. At a given temperature, a low activation energy means a fast reaction. D. A and Ea as used in Arrhenius equation depend on temperature. E. When Ea >> RT, A and Ea become interdependent. Choose the correct answer from the options given below:
  1. (1)A and B Only
  2. (2)B and C OnlyOfficial answer
  3. (3)A, C and D Only
  4. (4)B, D and E Only

Official answer

Option 2

NTA final key.

Same topic in other shifts

All Arrhenius Equation questions
  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. 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
  6. 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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.