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Sunday, 25 October

JEE Main · Chemistry · Class 11

Thermodynamics (Chemistry): JEE Main previous year questions

112 questions in 99 of the 108 JEE Main shifts Lumi analysed, asked in 8 of 8 years. Here is what this chapter tests and how.

Study this chapter
Questions
112
in 99 of 108 shifts · 8 of 8 years
Average a shift
1.1
of 25 Chemistry · 1.2 since 2024 0.2
Typical range
0.7–1.4
questions a shift; fewest 0.7, most 1.7
Weighted estimate
1.2
model, recent years count more · about 4.9 marks
  • Typical range (fact)
  • Average a shift (fact)
  • Weighted estimate (model)

Questions are counted per shift, out of the 25 each subject has, in the shifts Lumi analysed; papers that offered 30 a subject (2017, 2021–2024) are scaled to 25. Typical range: the middle six of the eight years (2017, 2020–2026), leaving out the single highest and lowest year. The average and the range are historical fact. The weighted estimate is a model: each year's share, with recent years counting more (half-life three years), and chapters NTA dropped from the syllabus set near zero. It is a guide to effort, not a forecast of the paper.

What to do

How to spend time on Thermodynamics (Chemistry)

Priority

Should do

One of the 6 Chemistry chapters that took Chemistry from half to 80% of its questions in the 108 shifts analysed. How bands are set

Past questions
112in 99 of 108 shifts
Study plan gives it
19 hover 12 months; 15 h over 6
Study this chapter →

Ideas asked most often

  1. Gibbs Energy and Equil10×
  2. Relation Between ΔH and ΔU10×
  3. Bomb Calorimetry Calculations7×
  4. Formation and Combustion7×
  5. Hess's Law5×

87 of the 154 ideas in Lumi’s map of this chapter have not been asked or touched in the shifts analysed. Of its idea-tagged questions from 2024 on, 31% tested an idea not asked in an earlier year, so learn the whole chapter, not just the list above.

Within each subject, chapters in NTA's 2026 syllabus are ranked by their average questions a shift over all 8 years analysed (history, not the model). Going down that list, the chapters that together held the first half of the subject's questions are Must do; the next ones, up to 80%, are Should do; the rest are Lower priority.

Key findings

Thermodynamics (Chemistry) at a glance

  1. 01

    69%

    of its 32 questions from 2024 on that Lumi matched to an idea tested one JEE Main had asked in an earlier year; 100% came from a topic asked in an earlier year.

  2. 02

    57%

    of the 154 ideas in Lumi's map of the chapter have not been asked or touched on in the shifts analysed.

  3. 03

    70%

    of its questions asked for a numerical answer, 2.3 times the Chemistry average.

  4. 04

    4%

    of its questions were rated hard, against 6% across all Chemistry questions in the same shifts.

Questions a shift, year by year

Out of the 25 Chemistry questions in a shift. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift.

0241.7’170.7’200.7’210.8’221’230.9’241.3’251.4’26

Raw count: 2017: 2 in 1 shift · 2020: 8 in 12 shifts · 2021: 21 in 24 shifts · 2022: 24 in 24 shifts · 2023: 14 in 12 shifts · 2024: 20 in 18 shifts · 2025: 10 in 8 shifts · 2026: 13 in 9 shifts.

Kind of question

SHARE OF QUESTIONS
  • Numerical answer70%
  • Conceptual13%
  • Calculation5%
  • Recall, single correct4%
  • Multi-step3%
  • Match the list2%
  • Diagram based2%
  • Application1%
  • Two statements1%
  • Assertion–reason1%
  • Data or graph1%

Most common asks: enthalpy of formation via hess cycle (3); minimum temperature for spontaneity (2); enthalpy of formation from combustion data (2).

Profile

This chapter in numbers

Where it ranks, how steady it is, and what it costs to study.

Rank, all JEE chapters
#25
of 70 by weighted estimate
Rank in Chemistry
#12
of 21 chapters
Share of Chemistry
4.2%
of its questions, all shifts analysed
Busiest year
2017
1.7 questions a shift
Year to year
Some swing
varies by about 0.3 questions a shift
Long-run direction
-0.00
questions a shift, per year
Easy questions
39%
4% rated hard
Numerical answer
70%
2.3× the Chemistry rate
With a figure
13%
graph, diagram or structure
Study time
19 h
15 h on a 6-month plan
Marks per study hour
0.25
#16 of 70 chapters
Foundation for others
46%
of its ideas are used in other chapters

Difficulty, year by year

Each question rated easy, medium or hard. Each bar is that year’s split, so years compare directly; the number is the questions in that year’s analysed shifts (1 to 24 shifts a year).

  • 20172
  • 20208
  • 202121
  • 202224
  • 202314
  • 202420
  • 202510
  • 202613
  • Easy
  • Medium
  • Hard

What it asks you to do

SHARE OF QUESTIONS
  • Calculation60%
  • Conceptual21%
  • Multi-step10%
  • Data or graph5%
  • Recall4%
  • Application1%

Coverage

How much of the chapter JEE Main has used

We split the chapter into 154 ideas. In the 108 shifts analysed, JEE Main built a question around 42 of them. Most of the chapter has never been the main idea of a question, so past questions alone leave most of it out.

Asked as the main idea
42
Touched on in a question
25
Never asked
87

Topics

What repeats, topic by topic

This chapter's questions per topic in each year's analysed shifts. The number is the count; the shade is scaled to one shift, so a year with more analysed shifts (1 to 24 a year) does not look darker. 19 questions had no close topic in Lumi's map and count for the chapter only.

’17’20’21’22’23’24’25’26
017+questions in that year’s analysed shifts, shaded per shift
  • Enthalpy and Hess's Law

    As a topic: 62 questions in 8 of 8 years, most often numerical value, 74% numerical answer. Recent asks: numerical: enthalpy of reaction from formation enthalpies; numerical: enthalpy of formation from bomb calorimetry; statement I/II on heat capacities of ideal gas.

  • Gibbs Free Energy

    As a topic: 29 questions in 6 of 8 years, most often numerical value, 66% numerical answer.

  • First Law of Thermodynamics

    As a topic: 40 questions in 8 of 8 years, most often single correct, 35% numerical answer.

  • Entropy

    As a topic: 4 questions in 3 of 8 years, most often numerical value, 50% numerical answer.

Drill down

Topic, idea, question

Open a topic to see every idea JEE Main tested inside it, then open an idea to read the questions. Each row shows its 8 years.

  • Open58 · 52%411178854

    22 ideas inside

    • OpenRepeated10 · 17%26
    • OpenRepeated7 · 12%2
    • OpenRepeated7 · 12%3
    • OpenRepeated5 · 9%2
    • OpenRepeated5 · 9%
    • OpenRepeated3 · 5%
    • OpenRepeated3 · 5%
    • OpenRepeated2 · 3%
    • OpenRepeated2 · 3%
    • OpenRepeated2 · 3%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
    • Open1 · 2%
  • Open20 · 18%342524
  • Open5 · 4%2
  • Open4 · 4%2
  • Open4 · 4%
  • Open1 · 1%
  • Open1 · 1%

Squares are the 8 years with analysed shifts, 2017 to 2026. A number is the questions that year when there is more than one; the shade is scaled to one shift, so a year with more analysed shifts (1 to 24 a year) does not look darker. Share is of the level above.

Ideas

The exact ideas JEE Main has asked

Inside the topics, 40 different ideas were tested; 18 came more than once. These are the repeats, then the ideas new since 2024.

Dots are the 8 years with analysed shifts, 2017 to 2026.

Every question

All 112 Thermodynamics (Chemistry) questions

Newest first, shift by shift. The newest 40 show their opening words; older ones name the idea they tested. Each opens with its options and the official answer.

JEE Main 202613 questions

  1. 2 Apr 2026, Shift 1 · Q54Consider the following data. (i) 2Al(s)+6HCl(aq)→Al2Cl6(aq)+3H2(g)+1200\mathrm{2Al(s)+6HCl(aq)\rightarrow Al_2Cl_6(aq)+3H_2(g)}+1200 kJ/mol (ii)…HardSingle correct
  2. 2 Apr 2026, Shift 1 · Q75At the transition temperature TT, A⇌B\mathrm{A\rightleftharpoons B} and ΔG0=105−35log⁡T\Delta G^0=105-35\log T where A and B are two states of…MediumNumerical value
  3. 2 Apr 2026, Shift 2 · Q54Gas 'A' undergoes change from state 'X' to state 'Y'. In this process, the heat absorbed and work done by the gas is 10 J and 18 J…MediumSingle correct
  4. 4 Apr 2026, Shift 1 · Q54Given below are two statements: Statement I: For an ideal gas, heat capacity at constant volume is always greater than the heat capacity…EasyTwo statements
  5. 4 Apr 2026, Shift 2 · Q71If 3.365 g of ethanol (ll) is burnt completely in a bomb calorimeter at 298.15 K, the heat produced is 99.472 kJ. The…HardNumerical value
  6. 4 Apr 2026, Shift 2 · Q72For the following reaction at 50 ∘^\circC and at 2 atm pressure, 2N2O5(g)⇌2N2O4(g)+O2(g)\mathrm{2N_2O_5(g)\rightleftharpoons2N_2O_4(g)+O_2(g)}…HardNumerical value
  7. 5 Apr 2026, Shift 1 · Q74The values of pressure equilibrium constant recorded at different temperatures for the following equilibrium reaction have been given…MediumNumerical value
  8. 5 Apr 2026, Shift 2 · Q54Consider the following data for the reaction X2(g)+Y2(g)⇌2XY(g)\mathrm{X_2(g)+Y_2(g)\rightleftharpoons 2XY(g)} at 600 K. The ΔrG⊖\Delta_r G^\ominus (in kJ…MediumSingle correct
  9. 5 Apr 2026, Shift 2 · Q55The correct order of molar heat capacities measured at 298 K and 1 bar is :MediumSingle correct
  10. 6 Apr 2026, Shift 1 · Q55Arrange the following isothermal processes in order of the magnitude of the work (p −- V) involved between states 1 and 2. A. Expansion…MediumSingle correct
  11. 6 Apr 2026, Shift 1 · Q75Consider the reaction X⇌Y\mathrm{X\rightleftharpoons Y} at 300 K. If ΔHθ\Delta H^\theta and K are 28.40 kJ mol−1^{-1} and 1.8×10−71.8\times10^{-7}…MediumNumerical value
  12. 6 Apr 2026, Shift 2 · Q54Match List - I with List - II. Given V1V_1 and V2V_2 are initial and final volumes respectively. List - I (Isothermal process) A.…MediumMatch the list
  13. 8 Apr 2026, Shift 2 · Q74Consider the reaction 2H2S(g)+3O2(g)→2H2O(l)+2SO2(g)2\mathrm{H_2S(g)} + 3\mathrm{O_2(g)} \rightarrow 2\mathrm{H_2O(l)} + 2\mathrm{SO_2(g)} The magnitude of enthalpy…EasyNumerical value

JEE Main 202510 questions

  1. 2 Apr 2025, Shift 1 · Q53Two vessels A and B are connected via stopcock. The vessel A is filled with a gas at a certain pressure. The entire assembly is immersed…MediumSingle correctHas a figure
  2. 2 Apr 2025, Shift 2 · Q53Arrange the following in order of magnitude of work done by the system/on the system at constant temperature. (a)…MediumOther
  3. 2 Apr 2025, Shift 2 · Q54Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process ?HardDiagram basedHas a figure
  4. 3 Apr 2025, Shift 1 · Q53Which of the following properties will change when system containing solution 1 will become solution 2? Solution 1: 10 mol of solute x +…MediumDiagram basedHas a figure
  5. 3 Apr 2025, Shift 1 · Q71Given : ΔHsub⊖\Delta H^{\ominus}_{sub} [C (graphite)] = 710 kJ mol−1^{-1} ΔC−HH⊖\Delta_{C-H}H^{\ominus} = 414 kJ mol−1^{-1}…MediumNumerical value
  6. 3 Apr 2025, Shift 2 · Q71A perfect gas (0.1 mol) having C‾v=1.50R\overline{\mathrm{C}}_v = 1.50\mathrm{R} (independent of temperature) undergoes the above transformation…MediumNumerical valueHas a figure
  7. 3 Apr 2025, Shift 2 · Q72A sample of n-octane (1.14 g) was completely burnt in excess of oxygen in a bomb calorimeter, whose heat capacity is 5 kJ…MediumNumerical value
  8. 4 Apr 2025, Shift 2 · Q52Consider the given data : (a) HCl(g)+10 H2O(l)→HCl.10 H2O\mathrm{HCl(g)+10\ H_2O(l)\rightarrow HCl.10\ H_2O} ΔH=−69.01\Delta H=-69.01 kJ mol−1^{-1} (b)…MediumSingle correct
  9. 7 Apr 2025, Shift 1 · Q53Total enthalpy change for freezing of 1 mol of water at 10∘10^\circC to ice at −10∘-10^\circC is __________ (Given: ΔfusH=x\Delta_{fus}H = x…MediumSingle correct
  10. 7 Apr 2025, Shift 2 · Q52The correct statement amongst the following is :MediumSingle correct

JEE Main 202420 questions

  1. 4 Apr 2024, Shift 1 · Q83The enthalpy of formation of ethane (C2H6\mathrm{C_2H_6}) from ethylene by addition of hydrogen where the bond-energies of C−-H, C−-C,…EasyNumerical value
  2. 4 Apr 2024, Shift 2 · Q83Three moles of an ideal gas are compressed isothermally from 60 L to 20 L using constant pressure of 5 atm. Heat exchange Q for the…EasyNumerical value
  3. 5 Apr 2024, Shift 1 · Q72Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A) : Enthalpy of…EasyAssertion–reason
  4. 5 Apr 2024, Shift 1 · Q83The heat of combustion of solid benzoic acid at constant volume is −321.30-321.30 kJ at 27∘27^\circC. The heat of combustion at constant…MediumNumerical value
  5. 5 Apr 2024, Shift 2 · Q83Combustion of 1 mole of benzene is expressed at C6H6(l)+152 O2(g)→6 CO2(g)+3 H2O(l)\mathrm{C_6H_6(l) + \frac{15}{2}\,O_2(g) \rightarrow 6\,CO_2(g) + 3\,H_2O(l)}. The…MediumNumerical value
  6. 6 Apr 2024, Shift 1 · Q83An ideal gas, Cˉv=52R\bar{C}_v = \frac{5}{2}R, is expanded adiabatically against a constant pressure of 1 atm untill it doubles in volume. If…MediumNumerical value
  7. 6 Apr 2024, Shift 2 · Q83For the reaction at 298 K, 2A+B→C2A + B \rightarrow C, ΔH=400\Delta H = 400 kJ mol−1^{-1} and ΔS=0.2\Delta S = 0.2 kJ mol−1^{-1} K−1^{-1}. The…EasyNumerical value
  8. 8 Apr 2024, Shift 1 · Q83Consider the figure provided. 1 mol of an ideal gas is kept in a cylinder, fitted with a piston, at the position A, at 18∘18^\circ C. If…MediumNumerical valueHas a figure
  9. 8 Apr 2024, Shift 2 · Q84ΔvapH⊖\Delta_{vap}H^{\ominus} for water is +40.79 kJ mol−1+40.79\ \mathrm{kJ\,mol^{-1}} at 1 bar and 100 °C. Change in internal energy for this…EasyNumerical value
  10. 9 Apr 2024, Shift 1 · Q83The heat of solution of anhydrous CuSO4\mathrm{CuSO_4} and CuSO4⋅5H2O\mathrm{CuSO_4\cdot5H_2O} are −70-70 kJ mol−1^{-1} and +12+12 kJ mol−1^{-1}…EasyNumerical value
  11. 9 Apr 2024, Shift 1 · Q84When equal volume of 1M HCl and 1M H2SO4\mathrm{H_2SO_4} are separately neutralised by excess volume of 1M NaOH solution, xx and yy kJ of…EasyNumerical value
  12. 9 Apr 2024, Shift 2 · Q83When ΔHvap=30\Delta H_{vap} = 30 kJ/mol and ΔSvap=75 J mol−1K−1\Delta S_{vap} = 75\ \mathrm{J\,mol^{-1}K^{-1}}, then the temperature of vapour, at one atmosphere…EasyNumerical value
  13. 1 Feb 2024, Shift 1 · Q63Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following :EasySingle correct
  14. 1 Feb 2024, Shift 2 · Q82For a certain reaction at 300K, K = 10, then ΔG∘\Delta G^\circ for the same reaction is −- ________ ×10−1\times 10^{-1} kJ mol−1^{-1}. (Given…EasyNumerical value
  15. 27 Jan 2024, Shift 1 · Q84If three moles of an ideal gas at 300 K expand isothermally from 30 dm330\ \mathrm{dm^3} to 45 dm345\ \mathrm{dm^3} against a constant opposing…MediumNumerical value
  16. 29 Jan 2024, Shift 1 · Q62Which of the following is not correct?EasySingle correct
  17. 30 Jan 2024, Shift 1 · Q83[Graph: V (dm3^3) on the vertical axis (marks 10, 20, 30) versus P (kPa) on the horizontal axis (marks 10, 20, 30). Point A at P = 10…MediumNumerical valueHas a figure
  18. 30 Jan 2024, Shift 2 · Q82Hess's Law · Easy · Numerical value
  19. 31 Jan 2024, Shift 1 · Q84Gibbs Energy and Equil · Easy · Numerical value
  20. 31 Jan 2024, Shift 2 · Q82Open the question · Easy · Numerical value

JEE Main 202314 questions

  1. 6 Apr 2023, Shift 1 · Q84Gibbs Energy and Equil · Medium · Numerical value
  2. 6 Apr 2023, Shift 1 · Q86Gibbs Energy vs Extent of Reaction Curve · Medium · Numerical value · has a figure
  3. 6 Apr 2023, Shift 2 · Q83Formation and Combustion · Medium · Numerical value
  4. 8 Apr 2023, Shift 1 · Q84Enthalpy and Heat Capacity · Easy · Numerical value
  5. 8 Apr 2023, Shift 2 · Q83Bomb Calorimetry Calculations · Medium · Numerical value
  6. 10 Apr 2023, Shift 1 · Q62Manipulating Thermochemical Equations · Easy · Single correct
  7. 10 Apr 2023, Shift 2 · Q83Sign Conventions for Heat Flow · Easy · Numerical value
  8. 11 Apr 2023, Shift 1 · Q83Standard Enthalpy of Reaction · Medium · Numerical value
  9. 11 Apr 2023, Shift 2 · Q84Extensive Nature of Enthalpy · Easy · Numerical value
  10. 12 Apr 2023, Shift 1 · Q83Entropy of Surroundings and Universe · Medium · Numerical value
  11. 13 Apr 2023, Shift 1 · Q83Bond Enthalpy Calculations · Medium · Numerical value
  12. 13 Apr 2023, Shift 2 · Q62Open the question · Medium · Single correct · has a figure
  13. 13 Apr 2023, Shift 2 · Q68Open the question · Medium · Single correct
  14. 15 Apr 2023, Shift 1 · Q82Entropy Change at Equilibrium Phase Transition · Easy · Numerical value

JEE Main 202224 questions

  1. 25 Jul 2022, Shift 1 · Q82Hess's Law · Easy · Numerical value
  2. 25 Jul 2022, Shift 2 · Q84Enthalpy of Ionization of Weak Acids/Bases · Medium · Numerical value
  3. 26 Jul 2022, Shift 1 · Q84Bomb Calorimetry Calculations · Medium · Numerical value
  4. 26 Jul 2022, Shift 2 · Q83Relation Between ΔH and ΔU · Easy · Numerical value
  5. 27 Jul 2022, Shift 1 · Q84Heat Capacity Relation in Enthalpy · Medium · Numerical value
  6. 27 Jul 2022, Shift 2 · Q83Bomb Calorimetry Calculations · Medium · Numerical value
  7. 28 Jul 2022, Shift 1 · Q62Relation Between ΔH and ΔU · Easy · Single correct
  8. 28 Jul 2022, Shift 2 · Q60Enthalpy as a State Function · Easy · Numerical value
  9. 29 Jul 2022, Shift 1 · Q84Constant Enthalpy of Neutralization · Medium · Numerical value
  10. 29 Jul 2022, Shift 2 · Q63Formation and Combustion · Medium · Single correct
  11. 30 Jul 2022, Shift 2 · Q33Gibbs Energy vs Temperature Graph · Medium · Other · has a figure
  12. 24 Jun 2022, Shift 1 · Q82Gibbs Energy and Equil · Medium · Numerical value
  13. 24 Jun 2022, Shift 2 · Q64Formation and Combustion · Medium · Single correct
  14. 25 Jun 2022, Shift 1 · Q84Gibbs Energy and Equil · Easy · Numerical value
  15. 25 Jun 2022, Shift 2 · Q62Formation and Combustion · Medium · Single correct
  16. 26 Jun 2022, Shift 1 · Q81Relation Between ΔH and ΔU · Medium · Numerical value
  17. 26 Jun 2022, Shift 2 · Q84Relation Between ΔH and ΔU · Medium · Numerical value
  18. 27 Jun 2022, Shift 1 · Q63Spontaneity Criteria · Easy · Match the list
  19. 27 Jun 2022, Shift 2 · Q84Work and Heat in Isothermal Processes · Easy · Numerical value
  20. 28 Jun 2022, Shift 1 · Q84Free Expansion of Ideal Gas · Easy · Numerical value
  21. 28 Jun 2022, Shift 2 · Q82Relation Between ΔH and ΔU · Medium · Numerical value
  22. 29 Jun 2022, Shift 1 · Q82Enthalpy of Phase Transitions · Easy · Numerical value
  23. 29 Jun 2022, Shift 2 · Q82Relation Between ΔH and ΔU · Medium · Numerical value
  24. 30 Jun 2022, Shift 1 · Q83Work and Heat in Isothermal Processes · Medium · Numerical value · has a figure

JEE Main 202121 questions

  1. 3 Aug 2021, Shift 1 · Q53Cyclic Process Work · Easy · Numerical value · has a figure
  2. 3 Aug 2021, Shift 2 · Q54Open the question · Hard · Numerical value · has a figure
  3. 4 Aug 2021, Shift 1 · Q53Mechanical Energy to Internal Energy Conversion · Medium · Numerical value
  4. 4 Aug 2021, Shift 2 · Q52Dalton's Law · Easy · Numerical value
  5. 4 Aug 2021, Shift 2 · Q55Hess's Law · Medium · Numerical value
  6. 26 Aug 2021, Shift 1 · Q53Born-Haber Cycle for Lattice Enthalpy · Medium · Numerical value
  7. 26 Aug 2021, Shift 2 · Q53Relation Between ΔH and ΔU · Medium · Numerical value
  8. 27 Aug 2021, Shift 1 · Q52Constant Enthalpy of Neutralization · Medium · Numerical value
  9. 27 Aug 2021, Shift 2 · Q55Temperature Dependence · Medium · Numerical value · has a figure
  10. 31 Aug 2021, Shift 2 · Q31Gibbs Energy and Equil · Medium · Single correct
  11. 25 Feb 2021, Shift 1 · Q53Bomb Calorimetry Calculations · Medium · Numerical value
  12. 25 Feb 2021, Shift 2 · Q54Open the question · Medium · Numerical value
  13. 26 Feb 2021, Shift 1 · Q53Temperature Dependence · Easy · Numerical value
  14. 26 Feb 2021, Shift 2 · Q54Bond Enthalpy Calculations · Medium · Numerical value
  15. 22 Jul 2021, Shift 2 · Q54Formation and Combustion · Easy · Numerical value
  16. 25 Jul 2021, Shift 1 · Q55Enthalpies of Phase Transitions · Easy · Numerical value
  17. 25 Jul 2021, Shift 2 · Q54Sign Conventions for Heat Flow · Easy · Numerical value
  18. 16 Mar 2021, Shift 2 · Q54Open the question · Medium · Numerical value
  19. 17 Mar 2021, Shift 1 · Q54Standard Enthalpy of Reaction · Easy · Numerical value
  20. 17 Mar 2021, Shift 2 · Q32Predicting Entropy Sign · Medium · Other
  21. 18 Mar 2021, Shift 1 · Q53Bond Enthalpy Calculations · Easy · Numerical value

JEE Main 20208 questions

  1. 8 Jan 2020, Shift 1 · Q47Work Done from P-V Graph Area · Easy · Numerical value · has a figure
  2. 8 Jan 2020, Shift 2 · Q47Open the question · Medium · Numerical value
  3. 9 Jan 2020, Shift 1 · Q28Enthalpy of Atomization · Medium · Single correct
  4. 9 Jan 2020, Shift 2 · Q26Temperature Dependence of Reaction Entropy · Easy · Single correct
  5. 2 Sep 2020, Shift 1 · Q46Relation Between ΔH and ΔU · Easy · Numerical value
  6. 2 Sep 2020, Shift 2 · Q47Relation Between ΔH and ΔU · Medium · Numerical value
  7. 4 Sep 2020, Shift 1 · Q29Heat Capacity Relation in Enthalpy · Medium · Other
  8. 4 Sep 2020, Shift 2 · Q29Open the question · Easy · Single correct

JEE Main 20172 questions

  1. 2 Apr 2017 (offline) · Q31Hess's Law · Easy · Single correct
  2. 2 Apr 2017 (offline) · Q33Open the question · Easy · Single correct

Questions from the official JEE Main papers published by NTA. Chapter, topic and idea tags, counts and notes are Lumi’s. Pattern: Asked most years.

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