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Sunday, 25 October

JEE Main · Chemistry · Class 12

Solutions: JEE Main previous year questions

124 questions in 102 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
124
in 102 of 108 shifts · 8 of 8 years
Average a shift
1.1
of 25 Chemistry · 1.3 since 2024 +0.3
Typical range
0.9–1.2
questions a shift; fewest 0.8, most 1.6
Weighted estimate
1.3
model, recent years count more · about 5.1 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 Solutions

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
124in 102 of 108 shifts
Study plan gives it
20 hover 12 months; 15 h over 6
Study this chapter →

Ideas asked most often

  1. Freezing Point Depression16×
  2. Boiling Point Elevation13×
  3. Relative Lowering of VP12×
  4. Osmotic Pressure7×
  5. PPM and Mass Percentage7×

19 of the 46 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, 8% 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

Solutions at a glance

  1. 01

    92%

    of its 39 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

    41%

    of the 46 ideas in Lumi's map of the chapter have not been asked or touched on in the shifts analysed.

  3. 03

    64%

    of its questions asked for a numerical answer, 2.1 times the Chemistry average.

  4. 04

    8%

    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.

0240.8’171’200.9’210.9’221’231’241.6’251.2’26

Raw count: 2017: 1 in 1 shift · 2020: 12 in 12 shifts · 2021: 26 in 24 shifts · 2022: 25 in 24 shifts · 2023: 15 in 12 shifts · 2024: 21 in 18 shifts · 2025: 13 in 8 shifts · 2026: 11 in 9 shifts.

Kind of question

SHARE OF QUESTIONS
  • Numerical answer64%
  • Calculation12%
  • Conceptual9%
  • Application5%
  • Two statements2%
  • Diagram based2%
  • Multi-step2%
  • Recall, single correct2%
  • Assertion–reason2%
  • Match the list1%

Most common asks: freezing point of solution (3); osmotic pressure of mixed solutions (2); order/ranking of freezing point depression (2).

Profile

This chapter in numbers

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

Rank, all JEE chapters
#20
of 70 by weighted estimate
Rank in Chemistry
#8
of 21 chapters
Share of Chemistry
4.2%
of its questions, all shifts analysed
Busiest year
2025
1.6 questions a shift
Year to year
Steady
varies by about 0.2 questions a shift
Long-run direction
+0.06
questions a shift, per year
Easy questions
34%
8% rated hard
Numerical answer
64%
2.1× the Chemistry rate
With a figure
9%
graph, diagram or structure
Study time
20 h
15 h on a 6-month plan
Marks per study hour
0.26
#14 of 70 chapters
Foundation for others
31%
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).

  • 20171
  • 202012
  • 202126
  • 202225
  • 202315
  • 202421
  • 202513
  • 202611
  • Easy
  • Medium
  • Hard

What it asks you to do

SHARE OF QUESTIONS
  • Calculation63%
  • Multi-step15%
  • Conceptual12%
  • Application6%
  • Recall2%
  • Data or graph2%

Coverage

How much of the chapter JEE Main has used

We split the chapter into 46 ideas. In the 108 shifts analysed, JEE Main built a question around 21 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
21
Touched on in a question
6
Never asked
19

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. 15 questions had no close topic in Lumi's map and count for the chapter only.

’17’20’21’22’23’24’25’26
021+questions in that year’s analysed shifts, shaded per shift
  • Colligative Properties

    As a topic: 89 questions in 8 of 8 years, most often numerical value, 70% numerical answer. Recent asks: count correct statements on colligative properties; numerical: vapour pressure from mole fraction; statement I/II on osmosis and osmotic pressure.

  • Mole Concept

    As a topic: 80 questions in 8 of 8 years, most often numerical value, 65% numerical answer. Recent asks: match list on atoms in given masses; statement I/II on mole fraction and Raoult deviation; empirical formula from mass percentage.

  • pH and Buffers

    As a topic: 45 questions in 8 of 8 years, most often numerical value, 51% numerical answer.

  • Colloids

    As a topic: 39 questions in 5 of 8 years, most often single correct, 8% 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.

  • Open88 · 71%72118121478

    20 ideas inside

    • OpenRepeated16 · 18%2734
    • OpenRepeated13 · 15%2522
    • OpenRepeated12 · 14%332
    • OpenRepeated7 · 8%23
    • OpenRepeated7 · 8%4
    • OpenRepeated6 · 7%2
    • OpenRepeated4 · 5%
    • OpenRepeated4 · 5%2
    • OpenRepeated4 · 5%2
    • OpenRepeated2 · 2%
    • OpenRepeated2 · 2%
    • OpenRepeated2 · 2%
    • OpenRepeated2 · 2%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
  • Open17 · 14%223252
  • Open2 · 2%
  • 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, 26 different ideas were tested; 19 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 124 Solutions 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 202611 questions

  1. 2 Apr 2026, Shift 1 · Q5519.519.5 g of fluoro acetic acid (molar mass =78 g mol−1=78\ \mathrm{g\ mol^{-1}}) is dissolved in 500500 g of water at 298298 K. The depression in the…MediumSingle correct
  2. 2 Apr 2026, Shift 2 · Q55Solution A is prepared by dissolving 1 g of a protein (molar mass = 50000 g mol−1^{-1}) in 0.5 L of water at 300 K. Its osmotic pressure…EasySingle correct
  3. 4 Apr 2026, Shift 1 · Q75A non-volatile, non-electrolyte solid solute when dissolved in 4040 g of a solvent, the vapour pressure of the solvent decreased from…MediumNumerical value
  4. 4 Apr 2026, Shift 2 · Q54At 27 ∘^\circC, 0.1 M, 1 L K4[Fe(CN)6]\mathrm{K_4[Fe(CN)_6]} aqueous solution and 0.1 M, 1 L FeCl3\mathrm{FeCl_3} aqueous solution are placed in a…MediumSingle correctHas a figure
  5. 5 Apr 2026, Shift 1 · Q54What is the mole fraction of water in 10% by weight (w/w) of aqueous urea solution? [Given: Molar mass of H, O, C and N are 1, 16, 12 and…EasySingle correct
  6. 5 Apr 2026, Shift 2 · Q7320 g hemoglobin in a 1 L aqueous solution (A) at 300 K is separated from pure water by semi permeable membrane. At equilibrium the height…MediumNumerical value
  7. 6 Apr 2026, Shift 1 · Q56When 0.25 moles of a non-volatile, non-ionizable solute was dissolved in 1 mole of a solvent the vapor pressure of solution was xx % of…EasySingle correct
  8. 6 Apr 2026, Shift 2 · Q55Given below are two statements : Statement I : H2O\mathrm{H_2O} molecules move from the chamber 1 to chamber 2. Statement II : The osmotic…MediumTwo statementsHas a figure
  9. 6 Apr 2026, Shift 2 · Q56Given is a concentrated solution of a weak electrolyte AxBy\mathrm{A_xB_y} of concentration 'c' and dissociation constant 'K'. The degree of…HardSingle correct
  10. 8 Apr 2026, Shift 2 · Q52Given below are two statements : Given : Molar mass of C, H, O, Cl are 12, 1, 16 and 35.5 g mol−1^{-1}, respectively Statement I : In 30%…MediumTwo statements
  11. 8 Apr 2026, Shift 2 · Q54Which of the following statements are not correct ? A. For water, magnitude of Kb\mathrm{K_b} is more than the magnitude of…MediumOtherHas a figure

JEE Main 202513 questions

  1. 2 Apr 2025, Shift 1 · Q54Which of the following graph correctly represents the plots of KH\mathrm{K_H} at 1 bar for gases in water versus temperature?HardDiagram basedHas a figure
  2. 2 Apr 2025, Shift 1 · Q55A solution is made by mixing one mole of volatile liquid A with 3 moles of volatile liquid B. The vapour pressure of pure A is 200 mm Hg…MediumSingle correct
  3. 2 Apr 2025, Shift 2 · Q51'xx' g of NaCl is added to water in a beaker with a lid. The temperature of the system is raised from 1∘1^\circC to 25∘25^\circC. Which…HardDiagram basedHas a figure
  4. 2 Apr 2025, Shift 2 · Q73When 1 g each of compounds AB and AB2\mathrm{AB_2} are dissolved in 15 g of water separately, they increased the boiling point of water by…MediumNumerical value
  5. 3 Apr 2025, Shift 1 · Q542 moles each of ethylene glycol and glucose are dissolved in 500 g of water. The boiling point of the resulting solution is: (Given :…EasySingle correct
  6. 4 Apr 2025, Shift 2 · Q53Given below are two statements : Statement (I) : Molal depression constant KfK_f is given by M1RTfΔSfus\frac{M_1RT_f}{\Delta S_{fus}}, where…MediumTwo statements
  7. 4 Apr 2025, Shift 2 · Q73Sea water, which can be considered as a 6 molar (6 M) solution of NaCl, has a density of 2 g mL−12\ \mathrm{g\,mL^{-1}}. The concentration of…MediumNumerical value
  8. 7 Apr 2025, Shift 1 · Q72The percentage dissociation of a salt (MX3\mathrm{MX_3}) solution at given temperature (van't Hoff factor i=2i = 2) is ___________ %(Nearest…EasyNumerical value
  9. 7 Apr 2025, Shift 2 · Q53The hydration energies of K+\mathrm{K^+} and Cl−\mathrm{Cl^-} are −x-x and −y-y kJ/mol respectively. If lattice energy of KCl is −z-z…EasySingle correct
  10. 7 Apr 2025, Shift 2 · Q54Match List - I with List - II. List - I | List - II (A) Solution of chloroform and acetone | (I) Minimum boiling azeotrope (B) Solution of…MediumMatch the list
  11. 7 Apr 2025, Shift 2 · Q55Liquid A and B form an ideal solution. The vapour pressures of pure liquids A and B are 350 and 750 mm Hg respectively at the same…MediumSingle correct
  12. 8 Apr 2025, Shift 2 · Q52Which of the following binary mixture does not show the behaviour of minimum boiling azeotropes?MediumSingle correct
  13. 8 Apr 2025, Shift 2 · Q53HA(aq)⇌H+(aq)+A−(aq)\mathrm{HA(aq) \rightleftharpoons H^+(aq) + A^-(aq)} The freezing point depression of a 0.1 m aqueous solution of a monobasic weak acid…MediumSingle correct

JEE Main 202421 questions

  1. 4 Apr 2024, Shift 1 · Q842.5 g of a non-volatile, non-electrolyte is dissolved in 100 g of water at 25°C. The solution showed a boiling point elevation by 2°C.…MediumNumerical value
  2. 4 Apr 2024, Shift 2 · Q842.7 kg of each of water and acetic acid are mixed. The freezing point of the solution will be -x °C. Consider the acetic acid does not…MediumNumerical value
  3. 5 Apr 2024, Shift 1 · Q84An artificial cell is made by encapsulating 0.2 M glucose solution within a semipermeable membrane. The osmotic pressure developed when…MediumNumerical value
  4. 5 Apr 2024, Shift 2 · Q84Considering acetic acid dissociates in water, its dissociation constant is 6.25×10−56.25\times10^{-5}. If 5 mL of acetic acid is dissolved in 1…HardNumerical value
  5. 6 Apr 2024, Shift 1 · Q84Consider the dissociation of the weak acid HX as given below HX(aq)⇌H+(aq)+X−(aq)\mathrm{HX(aq) \rightleftharpoons H^+(aq) + X^-(aq)}, Ka…MediumNumerical value
  6. 6 Apr 2024, Shift 2 · Q61Molality (mm) of 3 M aqueous solution of NaCl is : (Given : Density of solution =1.25 g mL−1=1.25\ \mathrm{g\,mL^{-1}}, Molar mass in…EasySingle correct
  7. 6 Apr 2024, Shift 2 · Q84When 'xx' ×10−2\times 10^{-2} mL methanol (molar mass =32= 32 g; density =0.792= 0.792 g/cm3^3) is added to 100 mL water (density =1= 1…MediumNumerical valueHas a figure
  8. 8 Apr 2024, Shift 1 · Q84A solution containing 10 g of an electrolyte AB2\mathrm{AB_2} in 100 g of water boils at 100.52∘100.52^\circC. The degree of ionization of the…MediumNumerical value
  9. 8 Apr 2024, Shift 2 · Q81A solution is prepared by adding 1 mole ethyl alcohol in 9 mole water. The mass percent of solute in the solution is ________ (Integer…EasyNumerical value
  10. 8 Apr 2024, Shift 2 · Q85Molality of an aqueous solution of urea is 4.44 m. Mole fraction of urea in solution is x×10−3x \times 10^{-3}. Value of xx is ________.…MediumNumerical value
  11. 9 Apr 2024, Shift 1 · Q630.05M CuSO40.05\mathrm{M}\ \mathrm{CuSO_4} when treated with 0.01M K2Cr2O70.01\mathrm{M}\ \mathrm{K_2Cr_2O_7} gives green colour solution of…MediumSingle correctHas a figure
  12. 9 Apr 2024, Shift 1 · Q81Molarity (M) of an aqueous solution containing xx g of anhyd. CuSO4\mathrm{CuSO_4} in 500 mL solution at 32 ∘^\circC is 2×10−12\times10^{-1} M.…MediumNumerical value
  13. 9 Apr 2024, Shift 2 · Q84The vapor pressure of pure benzene and methyl benzene at 27∘27^\circC is given as 80 Torr and 24 Torr, respectively. The mole fraction of…MediumNumerical value
  14. 1 Feb 2024, Shift 1 · Q64We have three aqueous solutions of NaCl labelled as 'A', 'B' and 'C' with concentration 0.1 M, 0.01 M and 0.001 M, respectively. The value…MediumSingle correct
  15. 1 Feb 2024, Shift 2 · Q83Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point at −24∘C-24^\circ\mathrm{C} is ________ kg…EasyNumerical value
  16. 27 Jan 2024, Shift 1 · Q62A solution of two miscible liquids showing negative deviation from Raoult's law will have :EasySingle correct
  17. 29 Jan 2024, Shift 1 · Q84Osmotic Pressure · Easy · Numerical value
  18. 30 Jan 2024, Shift 1 · Q63Freezing Point Depression · Easy · Single correct
  19. 30 Jan 2024, Shift 2 · Q61Mole Fraction Calculation · Easy · Single correct
  20. 30 Jan 2024, Shift 2 · Q64Ranking Solutions by Colligative Extremes · Medium · Single correct
  21. 31 Jan 2024, Shift 1 · Q62Open the question · Medium · Single correct

JEE Main 202315 questions

  1. 6 Apr 2023, Shift 1 · Q85Relative Lowering of VP · Medium · Numerical value
  2. 6 Apr 2023, Shift 2 · Q84Isotonic Solutions · Medium · Numerical value
  3. 8 Apr 2023, Shift 1 · Q85Phase Diagram Interpretation: Boiling Point · Easy · Numerical value · has a figure
  4. 8 Apr 2023, Shift 2 · Q84Thermodynamic Derivation of Ebullioscopic Constant (Kb) · Medium · Numerical value
  5. 10 Apr 2023, Shift 1 · Q84Degree of Dissociation from Van't Hoff Factor · Medium · Numerical value
  6. 10 Apr 2023, Shift 2 · Q84Osmotic Pressure · Medium · Numerical value
  7. 11 Apr 2023, Shift 1 · Q81PPM and Mass Percentage · Easy · Numerical value
  8. 11 Apr 2023, Shift 1 · Q84Isotonic Solutions · Medium · Numerical value
  9. 11 Apr 2023, Shift 2 · Q62Relative Lowering of VP · Medium · Single correct
  10. 11 Apr 2023, Shift 2 · Q64PPM and Mass Percentage · Easy · Single correct
  11. 12 Apr 2023, Shift 1 · Q84Van't Hoff Factor (i) · Medium · Numerical value
  12. 13 Apr 2023, Shift 1 · Q84Osmotic Pressure · Easy · Numerical value
  13. 13 Apr 2023, Shift 2 · Q63Optical and Kinetic Properties · Medium · Assertion–reason
  14. 13 Apr 2023, Shift 2 · Q84Boiling Point Elevation · Medium · Numerical value
  15. 15 Apr 2023, Shift 1 · Q83Relative Lowering of VP · Medium · Numerical value

JEE Main 202225 questions

  1. 25 Jul 2022, Shift 1 · Q63Van't Hoff Factor (i) · Medium · Single correct
  2. 25 Jul 2022, Shift 2 · Q62Freezing Point Depression · Easy · Single correct
  3. 26 Jul 2022, Shift 2 · Q84Boiling Point Elevation · Easy · Numerical value
  4. 27 Jul 2022, Shift 1 · Q61Molality Calculation · Medium · Single correct
  5. 27 Jul 2022, Shift 1 · Q65Boiling Point Elevation · Easy · Single correct
  6. 27 Jul 2022, Shift 2 · Q84RLVP to Molality Approximation Formula · Medium · Numerical value
  7. 28 Jul 2022, Shift 1 · Q84Freezing Point Depression · Easy · Numerical value
  8. 28 Jul 2022, Shift 2 · Q54Open the question · Medium · Numerical value
  9. 29 Jul 2022, Shift 1 · Q85Open the question · Medium · Numerical value
  10. 29 Jul 2022, Shift 2 · Q83Molar Mass Determination · Medium · Numerical value
  11. 30 Jul 2022, Shift 2 · Q51Molarity and Molality Interconversion · Medium · Numerical value
  12. 30 Jul 2022, Shift 2 · Q53Freezing Point Depression · Easy · Numerical value
  13. 24 Jun 2022, Shift 1 · Q83Isotonic Solutions · Easy · Numerical value
  14. 24 Jun 2022, Shift 2 · Q82Open the question · Medium · Numerical value
  15. 25 Jun 2022, Shift 2 · Q63Degree of Association from Van't Hoff Factor · Medium · Single correct
  16. 26 Jun 2022, Shift 1 · Q82Degree of Dissociation from Van't Hoff Factor · Medium · Numerical value
  17. 26 Jun 2022, Shift 2 · Q85Osmotic Pressure · Medium · Numerical value
  18. 27 Jun 2022, Shift 1 · Q61Molality Calculation · Easy · Assertion–reason
  19. 27 Jun 2022, Shift 1 · Q83Boiling Point Elevation · Easy · Numerical value
  20. 27 Jun 2022, Shift 2 · Q85Boiling Point Elevation · Easy · Numerical value
  21. 28 Jun 2022, Shift 1 · Q85Relative Lowering of VP · Medium · Numerical value
  22. 28 Jun 2022, Shift 2 · Q83Osmometry for Macromolecule Molar Mass · Medium · Numerical value
  23. 29 Jun 2022, Shift 1 · Q83Calculating Ka from Freezing Point Depression · Medium · Numerical value
  24. 29 Jun 2022, Shift 2 · Q83Boiling Point Elevation · Easy · Numerical value
  25. 30 Jun 2022, Shift 1 · Q63Open the question · Medium · Diagram based · has a figure

JEE Main 202126 questions

  1. 3 Aug 2021, Shift 1 · Q54Antifreeze Mass Calculations · Medium · Numerical value
  2. 3 Aug 2021, Shift 2 · Q32Freezing Point Depression · Easy · Single correct
  3. 4 Aug 2021, Shift 1 · Q54Boiling Point Elevation · Easy · Numerical value
  4. 4 Aug 2021, Shift 2 · Q56Van't Hoff Factor (i) · Medium · Numerical value
  5. 26 Aug 2021, Shift 1 · Q54Van't Hoff Factor (i) · Easy · Numerical value
  6. 26 Aug 2021, Shift 2 · Q54Freezing Point Depression · Medium · Numerical value
  7. 27 Aug 2021, Shift 1 · Q53Freezing Point Depression · Hard · Numerical value
  8. 27 Aug 2021, Shift 2 · Q56Freezing Point Depression · Easy · Numerical value
  9. 31 Aug 2021, Shift 1 · Q33Van't Hoff Factor (i) · Easy · Single correct
  10. 31 Aug 2021, Shift 2 · Q55Carboxylic Acid Dimerization in Non-Polar Solvents · Hard · Numerical value
  11. 24 Feb 2021, Shift 1 · Q55Calculating Ka from Freezing Point Depression · Hard · Numerical value
  12. 24 Feb 2021, Shift 2 · Q54Freezing Point Depression · Easy · Numerical value
  13. 25 Feb 2021, Shift 1 · Q54Van't Hoff Factor (i) · Medium · Numerical value
  14. 25 Feb 2021, Shift 2 · Q55Degree of Dissociation from Van't Hoff Factor · Medium · Numerical value
  15. 26 Feb 2021, Shift 1 · Q54Relative Lowering of VP · Hard · Numerical value
  16. 26 Feb 2021, Shift 2 · Q55Degree of Association from Van't Hoff Factor · Medium · Numerical value
  17. 22 Jul 2021, Shift 2 · Q32Freezing Point Depression · Easy · Single correct
  18. 22 Jul 2021, Shift 2 · Q51Molarity Calculation · Easy · Numerical value
  19. 25 Jul 2021, Shift 1 · Q56Open the question · Medium · Numerical value
  20. 25 Jul 2021, Shift 2 · Q55Boiling Point Elevation · Easy · Numerical value
  21. 16 Mar 2021, Shift 2 · Q55Open the question · Easy · Numerical value
  22. 17 Mar 2021, Shift 1 · Q51Molality Calculation · Medium · Numerical value
  23. 17 Mar 2021, Shift 1 · Q55Open the question · Medium · Numerical value
  24. 17 Mar 2021, Shift 2 · Q54Degree of Dissociation from Van't Hoff Factor · Medium · Numerical value
  25. 18 Mar 2021, Shift 1 · Q54Freezing Point Depression · Medium · Numerical value
  26. 18 Mar 2021, Shift 2 · Q54Degree of Association from Van't Hoff Factor · Medium · Numerical value

JEE Main 202012 questions

  1. 9 Jan 2020, Shift 1 · Q47Freezing Point Depression · Medium · Numerical value
  2. 9 Jan 2020, Shift 2 · Q46Freezing Point Depression · Hard · Numerical value · has a figure
  3. 9 Jan 2020, Shift 2 · Q47PPM and Mass Percentage · Easy · Numerical value
  4. 2 Sep 2020, Shift 1 · Q26Relative Lowering of VP · Medium · Single correct
  5. 2 Sep 2020, Shift 2 · Q27Open the question · Easy · Single correct
  6. 3 Sep 2020, Shift 1 · Q28Open the question · Medium · Single correct · has a figure
  7. 3 Sep 2020, Shift 1 · Q46Mole Fraction Calculation · Easy · Numerical value
  8. 3 Sep 2020, Shift 2 · Q47Isotonic Solutions · Medium · Numerical value
  9. 4 Sep 2020, Shift 1 · Q47Relative Lowering of VP · Medium · Numerical value
  10. 4 Sep 2020, Shift 2 · Q47Osmotic Pressure of Mixed Solutions · Easy · Numerical value
  11. 5 Sep 2020, Shift 1 · Q48pH of Weak Acids and Bases · Hard · Numerical value
  12. 6 Sep 2020, Shift 2 · Q43Relative Lowering of VP · Easy · Single correct

JEE Main 20171 question

  1. 2 Apr 2017 (offline) · Q37Degree of Association from Van't Hoff Factor · Medium · 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.

More Chemistry, Class 12

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