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Sunday, 25 October

JEE Main · Chemistry · Class 12

Coordination Compounds: JEE Main previous year questions

191 questions in 106 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
191
in 106 of 108 shifts · 8 of 8 years
Average a shift
1.6
of 25 Chemistry · 1.9 since 2024 +0.4
Typical range
1.1–2.1
questions a shift; fewest 0.8, most 2.3
Weighted estimate
1.9
model, recent years count more · about 7.6 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 Coordination Compounds

Priority

Must do

One of the 9 Chemistry chapters that together held the first half of Chemistry questions in the 108 shifts analysed. How bands are set

Past questions
191in 106 of 108 shifts
Study plan gives it
28 hover 12 months; 21 h over 6
Study this chapter →

Ideas asked most often

  1. High and Low Spin States34×
  2. Spin-only Magnetic Moment28×
  3. CFSE Calculation11×
  4. Precipitation Tests for Ionization Isomers8×
  5. Oxidation State Calculation7×

128 of the 203 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, 21% 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

Coordination Compounds at a glance

  1. 01

    79%

    of its 61 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

    63%

    of the 203 ideas in Lumi's map of the chapter have not been asked or touched on in the shifts analysed.

  3. 03

    30%

    of its questions asked for a numerical answer, 1.0 times the Chemistry average.

  4. 04

    7%

    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.

0240.8’172.1’201.2’211.1’222’231.8’242.3’251.6’26

Raw count: 2017: 1 in 1 shift · 2020: 25 in 12 shifts · 2021: 35 in 24 shifts · 2022: 32 in 24 shifts · 2023: 28 in 12 shifts · 2024: 38 in 18 shifts · 2025: 18 in 8 shifts · 2026: 14 in 9 shifts.

Kind of question

SHARE OF QUESTIONS
  • Numerical answer30%
  • Application18%
  • Multi-step11%
  • Conceptual10%
  • Recall, single correct10%
  • Match the list9%
  • Calculation5%
  • Two statements5%
  • Assertion–reason2%
  • Diagram based1%

Most common asks: order/ranking of spin-only magnetic moments (3); identify complexes showing a type of isomerism (2); spin-only magnetic moment of complex (2).

Profile

This chapter in numbers

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

Rank, all JEE chapters
#4
of 70 by weighted estimate
Rank in Chemistry
#2
of 21 chapters
Share of Chemistry
6.4%
of its questions, all shifts analysed
Busiest year
2025
2.3 questions a shift
Year to year
Some swing
varies by about 0.5 questions a shift
Long-run direction
+0.10
questions a shift, per year
Easy questions
24%
7% rated hard
Numerical answer
30%
1.0× the Chemistry rate
With a figure
2%
graph, diagram or structure
Study time
28 h
21 h on a 6-month plan
Marks per study hour
0.27
#4 of 70 chapters
Foundation for others
27%
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
  • 202025
  • 202135
  • 202232
  • 202328
  • 202438
  • 202518
  • 202614
  • Easy
  • Medium
  • Hard

What it asks you to do

SHARE OF QUESTIONS
  • Application25%
  • Multi-step23%
  • Conceptual18%
  • Recall17%
  • Calculation16%
  • Diagram reading1%
  • Data or graph1%

Coverage

How much of the chapter JEE Main has used

We split the chapter into 203 ideas. In the 108 shifts analysed, JEE Main built a question around 51 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
51
Touched on in a question
24
Never asked
128

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

’17’20’21’22’23’24’25’26
019+questions in that year’s analysed shifts, shaded per shift
  • Crystal Field Theory

    As a topic: 100 questions in 7 of 8 years, most often single correct, 26% numerical answer. Recent asks: numerical: count paramagnetic complexes; match list on CFSE of tetrahedral configurations; true statement selection on tetrahedral d-orbital energies.

  • Coordination Isomerism

    As a topic: 39 questions in 8 of 8 years, most often single correct, 41% numerical answer.

  • Coordination Nomenclature

    As a topic: 10 questions in 5 of 8 years, most often single correct, 30% numerical answer.

  • Cation Analysis

    As a topic: 21 questions in 6 of 8 years, most often single correct, 10% 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.

  • Open97 · 51%12101916191110

    14 ideas inside

    • OpenRepeated34 · 35%5424784
    • OpenRepeated26 · 27%23775
    • OpenRepeated11 · 11%422
    • OpenRepeated6 · 6%3
    • OpenRepeated5 · 5%
    • OpenRepeated4 · 4%2
    • OpenRepeated3 · 3%2
    • OpenRepeated2 · 2%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
  • Open39 · 20%9746444
  • Open10 · 5%2322
  • Open7 · 4%4
  • Open2 · 1%2
  • Open2 · 1%
  • Open1 · 1%
  • Open1 · 1%
  • Open1 · 1%
  • Open1 · 1%
  • 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, 48 different ideas were tested; 21 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 191 Coordination Compounds 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 202614 questions

  1. 2 Apr 2026, Shift 1 · Q62Match List - I with List - II. List - I : Chromium (III) Complexes (en = ethylene diamine) List - II : Δ0\Delta_0 (cm−1\mathrm{cm^{-1}}) A.…MediumMatch the list
  2. 2 Apr 2026, Shift 1 · Q715.335.33 g of CrCl3⋅6H2O\mathrm{CrCl_3{\cdot}6H_2O}, which is a 1:31:3 electrolyte, is dissolved in water and is passed through a cation exchanger.…HardNumerical value
  3. 2 Apr 2026, Shift 2 · Q61Which of the following complexes will show coordination isomerism? A. [Ag(NH3)2][Ag(CN)2][Ag(NH_3)_2][Ag(CN)_2] B. [Co(NH3)6][Cr(CN)6][Co(NH_3)_6][Cr(CN)_6] C.…MediumSingle correct
  4. 4 Apr 2026, Shift 1 · Q62Match the LIST-I with LIST-II List-I (Complex ion): A. [Cr(H2O)6]2+[\mathrm{Cr(H_2O)_6}]^{2+}; B. [Co(H2O)6]2+[\mathrm{Co(H_2O)_6}]^{2+}; C.…EasyMatch the list
  5. 4 Apr 2026, Shift 2 · Q60Consider the metal complexes [Ni(en)3]2+\mathrm{[Ni(en)_3]^{2+}} (A), [NiCl4]2−\mathrm{[NiCl_4]^{2-}} (B) and [Ni(NH3)6]2+\mathrm{[Ni(NH_3)_6]^{2+}} (C). Choose the…MediumSingle correct
  6. 5 Apr 2026, Shift 1 · Q61The correct statements about metal carbonyls are A. The metal-carbon bonds in metal carbonyls possess both σ\sigma and π\pi-character.…MediumOther
  7. 5 Apr 2026, Shift 1 · Q62Given below are two statements: Statement I: Each electron in ege_g orbitals destabilizes the orbitals by +0.6 Δo+0.6\,\Delta_o and each…EasyTwo statements
  8. 5 Apr 2026, Shift 2 · Q61Identify the correct statements from the following A. [Fe(C2O4)3]3−\mathrm{[Fe(C_2O_4)_3]^{3-}} is the most stable complex among…HardOther
  9. 5 Apr 2026, Shift 2 · Q71The total number of unpaired electrons present in the d3d^3, d4d^4 (low spin) d5d^5 (high spin), d6d^6 (high spin) and d7d^7 (low spin)…EasyNumerical value
  10. 6 Apr 2026, Shift 1 · Q61Match the LIST-I with LIST-II List-I (Electronic configuration of tetrahedral metal ion) | List-II (Crystal Field Stabilization Energy…MediumMatch the list
  11. 6 Apr 2026, Shift 1 · Q62Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex? A. dxy=dxz>dx2−y2d_{xy}=d_{xz}>d_{x^2-y^2} B.…EasyOther
  12. 6 Apr 2026, Shift 2 · Q61Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ? A.…MediumOther
  13. 6 Apr 2026, Shift 2 · Q71An excess of AgNO3\mathrm{AgNO_3} is added to 100 mL of a 0.05 M solution of tetraaquadichloridochromium (III) chloride. The number of moles…EasyNumerical value
  14. 8 Apr 2026, Shift 2 · Q71Number of paramagnetic complexes among the following is ________. [MnBr4]2−[\mathrm{MnBr_4}]^{2-}, [NiCl4]2−[\mathrm{NiCl_4}]^{2-},…MediumNumerical value

JEE Main 202518 questions

  1. 2 Apr 2025, Shift 1 · Q60Given below are two statements : Statement (I) : In octahedral complexes, when Δo<\Delta_o< P high spin complexes are formed. When…EasyTwo statements
  2. 2 Apr 2025, Shift 1 · Q74A transition metal (M) among Mn, Cr, Co and Fe has the highest standard electrode potential (M3+/M2+\mathrm{M^{3+}/M^{2+}}). It forms a metal…MediumNumerical value
  3. 2 Apr 2025, Shift 2 · Q60The d-orbital electronic configuration of the complex among [Co(en)3]3+\mathrm{[Co(en)_3]^{3+}}, [CoF6]3−\mathrm{[CoF_6]^{3-}},…MediumSingle correct
  4. 2 Apr 2025, Shift 2 · Q61The type of hybridization and the magnetic property of [MnCl6]3−\mathrm{[MnCl_6]^{3-}} are,MediumSingle correct
  5. 3 Apr 2025, Shift 1 · Q63The correct order of the complexes [Co(NH3)5(H2O)]3+\mathrm{[Co(NH_3)_5(H_2O)]^{3+}} (A), [Co(NH3)6]3+\mathrm{[Co(NH_3)_6]^{3+}} (B), [Co(CN)6]3−\mathrm{[Co(CN)_6]^{3-}}…MediumSingle correct
  6. 3 Apr 2025, Shift 1 · Q72The number of optical isomers exhibited by the iron complex (A) obtained from the following reaction is ______.…MediumNumerical value
  7. 3 Apr 2025, Shift 2 · Q62Identify the diamagnetic octahedral complex ions from below ; A. [Mn(CN)6]3−[\mathrm{Mn(CN)_6}]^{3-} B. [Co(NH3)6]3+[\mathrm{Co(NH_3)_6}]^{3+} C.…MediumOther
  8. 4 Apr 2025, Shift 2 · Q59'X' is the number of electrons in t2g\mathrm{t_{2g}} orbitals of the most stable complex ion among [Fe(NH3)6]3+\mathrm{[Fe(NH_3)_6]^{3+}},…MediumSingle correct
  9. 4 Apr 2025, Shift 2 · Q60The correct order of [FeF6]3−\mathrm{[FeF_6]^{3-}}, [CoF6]3−\mathrm{[CoF_6]^{3-}}, [Ni(CO)4]\mathrm{[Ni(CO)_4]} and [Ni(CN)4]2−\mathrm{[Ni(CN)_4]^{2-}} complex…MediumSingle correct
  10. 4 Apr 2025, Shift 2 · Q75A metal complex with a formula MCl4⋅3NH3\mathrm{MCl_4\cdot3NH_3} is involved in sp3d2\mathrm{sp^3d^2} hybridisation. It upon reaction with excess of…MediumNumerical value
  11. 7 Apr 2025, Shift 1 · Q62An octahedral complex having molecular composition Co.5NH3.Cl.SO4\mathrm{Co.5NH_3.Cl.SO_4} has two isomers A and B. The solution of A gives a white…EasySingle correct
  12. 7 Apr 2025, Shift 1 · Q73The number of paramagnetic complexes among [FeF6]3−[\mathrm{FeF_6}]^{3-}, [Fe(CN)6]3−[\mathrm{Fe(CN)_6}]^{3-}, [Mn(CN)6]3−[\mathrm{Mn(CN)_6}]^{3-},…HardNumerical value
  13. 7 Apr 2025, Shift 2 · Q62The number of unpaired electrons responsible for the paramagnetic nature of the following complex species are respectively :…MediumSingle correct
  14. 7 Apr 2025, Shift 2 · Q63Match List - I with List - II. List - I (Complex) | List - II (Primary valency and Secondary valency) (A) [Co(en)2Cl2]Cl\mathrm{[Co(en)_2Cl_2]Cl} |…MediumMatch the list
  15. 7 Apr 2025, Shift 2 · Q73The number of paramagnetic metal complex species among [Co(NH3)6]3+\mathrm{[Co(NH_3)_6]^{3+}}, [Co(C2O4)3]3−\mathrm{[Co(C_2O_4)_3]^{3-}},…HardNumerical value
  16. 8 Apr 2025, Shift 2 · Q55The number of species from the following that are involved in sp3d2\mathrm{sp^3d^2} hybridization is [Co(NH3)6]3+\mathrm{[Co(NH_3)_6]^{3+}},…HardSingle correct
  17. 8 Apr 2025, Shift 2 · Q59Given below are two statements: Statement I : A homoleptic octahedral complex, formed using monodentate ligands, will not show…MediumTwo statements
  18. 8 Apr 2025, Shift 2 · Q60Match the LIST-I with LIST-II LIST-I (Complex/ Species) | LIST-II (Shape & magnetic moment) A. [Ni(CO)4]\mathrm{[Ni(CO)_4]} | I. Tetrahedral, 2.8…MediumMatch the list

JEE Main 202438 questions

  1. 4 Apr 2024, Shift 1 · Q70The correct sequence of ligands in the order of decreasing field strength is :MediumSingle correct
  2. 4 Apr 2024, Shift 1 · Q71Number of complexes from the following with even number of unpaired "d" electrons is ________. [V(H2O)6]3+[\mathrm{V(H_2O)_6}]^{3+},…MediumSingle correct
  3. 4 Apr 2024, Shift 1 · Q72In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :MediumSingle correct
  4. 4 Apr 2024, Shift 2 · Q70The number of unpaired d-electrons in [Co(H2O)6]3+\mathrm{[Co(H_2O)_6]^{3+}} is ________.MediumSingle correct
  5. 4 Apr 2024, Shift 2 · Q71If an iron (III) complex with the formula [Fe(NH3)x(CN)y]−\mathrm{[Fe(NH_3)_x(CN)_y]^{-}} has no electron in its eg\mathrm{e_g} orbital, then the value…MediumSingle correct
  6. 5 Apr 2024, Shift 1 · Q70The correct order of ligands arranged in increasing field strength.EasySingle correct
  7. 5 Apr 2024, Shift 1 · Q71Which one of the following complexes will exhibit the least paramagnetic behaviour ? [Atomic number, Cr = 24, Mn = 25, Fe = 26, Co = 27]EasySingle correct
  8. 5 Apr 2024, Shift 2 · Q70The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and M is metal) involves sp3\mathrm{sp^3}…EasySingle correct
  9. 5 Apr 2024, Shift 2 · Q71Tetrahedral Field Splitting and Delta_t Relation · Medium · Single correct
  10. 6 Apr 2024, Shift 1 · Q71Spectrochemical Series · Medium · Single correct
  11. 6 Apr 2024, Shift 2 · Q70Complex Numerical Prefixes (Bis/Tris) · Easy · Single correct
  12. 6 Apr 2024, Shift 2 · Q71Tetrahedral Field Splitting and Delta_t Relation · Medium · Match the list
  13. 6 Apr 2024, Shift 2 · Q87Nickel DMG Complex · Hard · Numerical value
  14. 8 Apr 2024, Shift 1 · Q67Open the question · Medium · Two statements
  15. 8 Apr 2024, Shift 1 · Q70Oxidation State Calculation · Medium · Single correct
  16. 8 Apr 2024, Shift 1 · Q71High and Low Spin States · Medium · Single correct
  17. 8 Apr 2024, Shift 2 · Q70Spin-only Magnetic Moment · Medium · Match the list
  18. 8 Apr 2024, Shift 2 · Q87High and Low Spin States · Medium · Numerical value
  19. 9 Apr 2024, Shift 1 · Q69Optical Activity in M(AA)2B2 Complexes · Medium · Assertion–reason
  20. 9 Apr 2024, Shift 1 · Q88Ambidentate Ligands in Linkage Isomerism · Easy · Numerical value
  21. 9 Apr 2024, Shift 2 · Q70Open the question · Easy · Single correct
  22. 9 Apr 2024, Shift 2 · Q71Open the question · Medium · Match the list
  23. 9 Apr 2024, Shift 2 · Q87Group IV Sulfides · Hard · Numerical value
  24. 1 Feb 2024, Shift 1 · Q69Color and d-d Transitions · Medium · Two statements
  25. 1 Feb 2024, Shift 1 · Q70Open the question · Easy · Single correct
  26. 1 Feb 2024, Shift 2 · Q70High and Low Spin States · Easy · Single correct
  27. 1 Feb 2024, Shift 2 · Q80Confirmatory Tests · Medium · Two statements
  28. 27 Jan 2024, Shift 1 · Q69Spin-only Magnetic Moment · Medium · Single correct
  29. 27 Jan 2024, Shift 1 · Q79Amphoterism of Tin and Lead Oxides · Medium · Single correct
  30. 29 Jan 2024, Shift 1 · Q69Open the question · Medium · Single correct
  31. 29 Jan 2024, Shift 1 · Q70Specific d-Block Industrial Catalysts · Easy · Match the list
  32. 30 Jan 2024, Shift 1 · Q68Open the question · Medium · Other
  33. 30 Jan 2024, Shift 2 · Q71Open the question · Medium · Single correct
  34. 30 Jan 2024, Shift 2 · Q86Optical Activity in M(AA)2B2 Complexes · Medium · Numerical value
  35. 31 Jan 2024, Shift 1 · Q70Limitations of Crystal Field Theory · Medium · Other
  36. 31 Jan 2024, Shift 1 · Q86Spin-only Magnetic Moment · Easy · Numerical value
  37. 31 Jan 2024, Shift 2 · Q70Spin-only Magnetic Moment · Medium · Single correct
  38. 31 Jan 2024, Shift 2 · Q71High and Low Spin States · Medium · Match the list

JEE Main 202328 questions

  1. 6 Apr 2023, Shift 1 · Q72Spin-only Magnetic Moment · Medium · Assertion–reason
  2. 6 Apr 2023, Shift 1 · Q88Ambidentate Ligands in Linkage Isomerism · Easy · Numerical value
  3. 6 Apr 2023, Shift 2 · Q70Oxidation States in Metal Carbonyls · Medium · Assertion–reason
  4. 6 Apr 2023, Shift 2 · Q72Anionic Complex Suffixes · Easy · Single correct
  5. 8 Apr 2023, Shift 1 · Q70High and Low Spin States · Medium · Single correct
  6. 8 Apr 2023, Shift 1 · Q72Spin-only Magnetic Moment · Medium · Single correct
  7. 8 Apr 2023, Shift 2 · Q69Spin-only Magnetic Moment · Medium · Match the list
  8. 8 Apr 2023, Shift 2 · Q90Spin-only Magnetic Moment · Medium · Numerical value
  9. 10 Apr 2023, Shift 1 · Q69High and Low Spin States · Medium · Single correct
  10. 10 Apr 2023, Shift 1 · Q80Open the question · Easy · Single correct
  11. 10 Apr 2023, Shift 1 · Q90High and Low Spin States · Medium · Numerical value
  12. 10 Apr 2023, Shift 2 · Q69High and Low Spin States · Medium · Other
  13. 10 Apr 2023, Shift 2 · Q70CFSE Calculation · Medium · Match the list
  14. 11 Apr 2023, Shift 1 · Q69Facial and Meridional Isomerism in MA3B3 · Easy · Single correct
  15. 11 Apr 2023, Shift 1 · Q70Ambidentate Ligands in Linkage Isomerism · Easy · Single correct
  16. 11 Apr 2023, Shift 1 · Q76Open the question · Hard · Single correct
  17. 11 Apr 2023, Shift 1 · Q88Spin-only Magnetic Moment · Easy · Numerical value
  18. 11 Apr 2023, Shift 2 · Q69Spin-only Magnetic Moment · Easy · Single correct
  19. 11 Apr 2023, Shift 2 · Q70Color and d-d Transitions · Medium · Assertion–reason
  20. 11 Apr 2023, Shift 2 · Q72Square Planar Geometry · Medium · Single correct
  21. 11 Apr 2023, Shift 2 · Q73Confirmatory Tests · Medium · Match the list
  22. 12 Apr 2023, Shift 1 · Q72CFSE Calculation · Medium · Match the list
  23. 13 Apr 2023, Shift 1 · Q71Open the question · Medium · Other
  24. 13 Apr 2023, Shift 2 · Q70Spin-only Magnetic Moment · Easy · Single correct
  25. 13 Apr 2023, Shift 2 · Q72Total Isomer Calculation · Medium · Single correct
  26. 15 Apr 2023, Shift 1 · Q70Effect of Metal Oxidation State on Splitting · Medium · Single correct
  27. 15 Apr 2023, Shift 1 · Q81Precipitation Tests for Ionization Isomers · Medium · Numerical value
  28. 15 Apr 2023, Shift 1 · Q89Octahedral Field Splitting · Medium · Numerical value

JEE Main 202232 questions

  1. 25 Jul 2022, Shift 1 · Q86Color and d-d Transitions · Medium · Numerical value
  2. 25 Jul 2022, Shift 2 · Q71Spectrochemical Series · Medium · Single correct
  3. 26 Jul 2022, Shift 1 · Q89Spin-only Magnetic Moment · Easy · Numerical value
  4. 26 Jul 2022, Shift 2 · Q71Spin-only Magnetic Moment · Medium · Single correct
  5. 27 Jul 2022, Shift 1 · Q87Open the question · Medium · Numerical value
  6. 27 Jul 2022, Shift 2 · Q70Pi-Bonding and the Spectrochemical Series · Medium · Single correct
  7. 27 Jul 2022, Shift 2 · Q89Spin-only Magnetic Moment · Medium · Numerical value
  8. 28 Jul 2022, Shift 1 · Q89Ambidentate Ligands in Linkage Isomerism · Hard · Numerical value
  9. 28 Jul 2022, Shift 2 · Q40Open the question · Medium · Match the list
  10. 29 Jul 2022, Shift 1 · Q90CFSE Calculation · Medium · Numerical value
  11. 29 Jul 2022, Shift 2 · Q71Jahn-Teller Distortion · Medium · Single correct
  12. 29 Jul 2022, Shift 2 · Q86Oxidation State Calculation · Easy · Numerical value · has a figure
  13. 30 Jul 2022, Shift 2 · Q40High and Low Spin States · Easy · Single correct
  14. 30 Jul 2022, Shift 2 · Q50Oxidation State Calculation · Medium · Single correct
  15. 24 Jun 2022, Shift 1 · Q87Open the question · Medium · Numerical value
  16. 24 Jun 2022, Shift 2 · Q71Effect of 3d vs 4d vs 5d Series on Splitting · Medium · Single correct
  17. 25 Jun 2022, Shift 1 · Q67AgCl Dissolution in Ammonia · Easy · Single correct
  18. 25 Jun 2022, Shift 1 · Q89Octahedral Field Splitting · Medium · Numerical value
  19. 25 Jun 2022, Shift 2 · Q87Spin-only Magnetic Moment · Hard · Numerical value
  20. 26 Jun 2022, Shift 1 · Q87Spin-only Magnetic Moment · Hard · Numerical value
  21. 26 Jun 2022, Shift 2 · Q89Octahedral Field Splitting · Medium · Numerical value
  22. 27 Jun 2022, Shift 1 · Q71CFSE Calculation · Medium · Single correct
  23. 27 Jun 2022, Shift 2 · Q70Spin-only Magnetic Moment · Medium · Other
  24. 28 Jun 2022, Shift 1 · Q69d8 Square Planar Preference · Medium · Two statements
  25. 28 Jun 2022, Shift 1 · Q89LUMO as Pi-Acceptor · Medium · Numerical value
  26. 28 Jun 2022, Shift 2 · Q86High and Low Spin States · Medium · Numerical value
  27. 28 Jun 2022, Shift 2 · Q87Total Isomer Calculation · Medium · Numerical value
  28. 29 Jun 2022, Shift 2 · Q68Classification of Hydrates · Medium · Two statements
  29. 29 Jun 2022, Shift 2 · Q87Precipitation Tests for Ionization Isomers · Easy · Numerical value
  30. 30 Jun 2022, Shift 1 · Q71Precipitation Tests for Ionization Isomers · Easy · Single correct
  31. 30 Jun 2022, Shift 1 · Q86Brown Ring Test for Nitrates · Medium · Numerical value
  32. 30 Jun 2022, Shift 1 · Q87Spin-only Magnetic Moment · Medium · Numerical value

JEE Main 202135 questions

  1. 3 Aug 2021, Shift 1 · Q59Precipitation Tests for Ionization Isomers · Medium · Numerical value
  2. 3 Aug 2021, Shift 2 · Q40Oxidation State Calculation · Easy · Single correct
  3. 4 Aug 2021, Shift 1 · Q57Oxidation State Calculation · Medium · Numerical value · has a figure
  4. 4 Aug 2021, Shift 1 · Q58d8 Square Planar Preference · Medium · Numerical value
  5. 4 Aug 2021, Shift 2 · Q38Oxidation State Calculation · Easy · Single correct
  6. 4 Aug 2021, Shift 2 · Q39Open the question · Easy · Single correct
  7. 4 Aug 2021, Shift 2 · Q50Sulfide Sodium Nitroprusside Test · Easy · Single correct
  8. 26 Aug 2021, Shift 1 · Q41Sulfide Sodium Nitroprusside Test · Medium · Single correct
  9. 26 Aug 2021, Shift 2 · Q39CFSE Calculation · Medium · Single correct
  10. 26 Aug 2021, Shift 2 · Q40Octahedral Geometrical · Medium · Single correct
  11. 26 Aug 2021, Shift 2 · Q58Open the question · Medium · Numerical value
  12. 27 Aug 2021, Shift 1 · Q50Open the question · Medium · Single correct
  13. 27 Aug 2021, Shift 1 · Q58Open the question · Medium · Numerical value
  14. 27 Aug 2021, Shift 2 · Q60Enantiomers of Tris-Chelate M(AA)3 Complexes · Easy · Numerical value
  15. 31 Aug 2021, Shift 1 · Q40Open the question · Medium · Single correct
  16. 31 Aug 2021, Shift 2 · Q39Spin-only Magnetic Moment · Medium · Single correct
  17. 31 Aug 2021, Shift 2 · Q50Group IIA and IIB Sulfide Separation · Medium · Match the list
  18. 24 Feb 2021, Shift 1 · Q60Open the question · Medium · Numerical value
  19. 24 Feb 2021, Shift 2 · Q40Spin-only Magnetic Moment · Medium · Single correct
  20. 25 Feb 2021, Shift 1 · Q40High and Low Spin States · Medium · Single correct
  21. 25 Feb 2021, Shift 2 · Q39Spin-only Magnetic Moment · Medium · Single correct
  22. 25 Feb 2021, Shift 2 · Q50Open the question · Medium · Two statements
  23. 26 Feb 2021, Shift 1 · Q60Open the question · Medium · Numerical value
  24. 26 Feb 2021, Shift 2 · Q60Total Isomer Calculation · Hard · Numerical value
  25. 22 Jul 2021, Shift 2 · Q58High and Low Spin States · Medium · Numerical value
  26. 25 Jul 2021, Shift 1 · Q39High and Low Spin States · Easy · Single correct
  27. 25 Jul 2021, Shift 1 · Q60Chemical Tests for Ionization Isomers · Medium · Numerical value
  28. 25 Jul 2021, Shift 2 · Q40Open the question · Easy · Single correct
  29. 16 Mar 2021, Shift 2 · Q59Color and d-d Transitions · Easy · Numerical value
  30. 17 Mar 2021, Shift 2 · Q40Structural Isomerism Types · Medium · Match the list
  31. 17 Mar 2021, Shift 2 · Q58Open the question · Medium · Numerical value
  32. 18 Mar 2021, Shift 1 · Q39Open the question · Easy · Match the list
  33. 18 Mar 2021, Shift 1 · Q40Square Planar Geometry · Medium · Diagram based · has a figure
  34. 18 Mar 2021, Shift 1 · Q58High and Low Spin States · Easy · Numerical value
  35. 18 Mar 2021, Shift 2 · Q40Open the question · Medium · Single correct

JEE Main 202025 questions

  1. 8 Jan 2020, Shift 1 · Q37Facial and Meridional Isomerism in MA3B3 · Easy · Single correct
  2. 8 Jan 2020, Shift 1 · Q49Precipitation Tests for Ionization Isomers · Medium · Numerical value
  3. 8 Jan 2020, Shift 2 · Q37Spin-only Magnetic Moment · Medium · Single correct
  4. 8 Jan 2020, Shift 2 · Q38Square Planar Geometry · Medium · Single correct
  5. 8 Jan 2020, Shift 2 · Q49Trigonal Bipyramidal Positions · Medium · Numerical value
  6. 9 Jan 2020, Shift 1 · Q37IUPAC Ligand Naming · Hard · Single correct
  7. 9 Jan 2020, Shift 1 · Q38Square Planar MABCD Geometrical Isomers · Medium · Single correct
  8. 9 Jan 2020, Shift 2 · Q36Geometrical Isomerism in MA4B2 Octahedral Complexes · Easy · Single correct
  9. 9 Jan 2020, Shift 2 · Q37High and Low Spin States · Medium · Other
  10. 2 Sep 2020, Shift 1 · Q36High and Low Spin States · Medium · Other
  11. 2 Sep 2020, Shift 1 · Q37CFSE Calculation · Hard · Single correct
  12. 2 Sep 2020, Shift 1 · Q49Oxidation State Calculation · Medium · Numerical value
  13. 2 Sep 2020, Shift 2 · Q37Spectrochemical Series · Medium · Diagram based · has a figure
  14. 2 Sep 2020, Shift 2 · Q38Absence of Geometrical Isomerism in Tetrahedral Complexes · Medium · Single correct
  15. 3 Sep 2020, Shift 1 · Q36Optical Activity of Cis-M(AA)2B2 · Medium · Single correct
  16. 3 Sep 2020, Shift 1 · Q37CFSE Calculation · Medium · Single correct
  17. 3 Sep 2020, Shift 2 · Q36Dehydration of Hydrate Isomers · Medium · Single correct
  18. 3 Sep 2020, Shift 2 · Q37High and Low Spin States · Medium · Single correct
  19. 4 Sep 2020, Shift 1 · Q37Ambidentate Ligands in Linkage Isomerism · Medium · Single correct
  20. 4 Sep 2020, Shift 1 · Q38Spin-only Magnetic Moment · Medium · Single correct
  21. 4 Sep 2020, Shift 2 · Q36CFSE Calculation · Medium · Single correct
  22. 4 Sep 2020, Shift 2 · Q37High and Low Spin States · Medium · Single correct
  23. 5 Sep 2020, Shift 1 · Q38CFSE Calculation · Medium · Single correct
  24. 5 Sep 2020, Shift 1 · Q46Open the question · Easy · Numerical value
  25. 6 Sep 2020, Shift 2 · Q39High and Low Spin States · Easy · Single correct

JEE Main 20171 question

  1. 2 Apr 2017 (offline) · Q50Precipitation Tests for Ionization Isomers · 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.

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