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Sunday, 25 October

JEE Main · Chemistry · Class 12

The d- and f-Block Elements: JEE Main previous year questions

153 questions in 91 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
153
in 91 of 108 shifts · 8 of 8 years
Average a shift
1.2
of 25 Chemistry · 1.6 since 2024 +0.6
Typical range
0.8–1.4
questions a shift; fewest 0.6, most 1.9
Weighted estimate
1.4
model, recent years count more · about 5.7 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 The d- and f-Block Elements

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
153in 91 of 108 shifts
Study plan gives it
21 hover 12 months; 16 h over 6
Study this chapter →

Ideas asked most often

  1. Spin-only Magnetism23×
  2. Lanthanide Electronic Configuration8×
  3. Acid-Base Character of Oxides8×
  4. Oxidation State Trends8×
  5. Color and Catalysis7×

56 of the 107 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, 25% 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

The d- and f-Block Elements at a glance

  1. 01

    75%

    of its 60 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

    52%

    of the 107 ideas in Lumi's map of the chapter have not been asked or touched on in the shifts analysed.

  3. 03

    25%

    of its questions asked for a numerical answer, 0.8 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.

0240.8’170.8’201.3’211.1’220.6’231.9’241.4’251.4’26

Raw count: 2017: 1 in 1 shift · 2020: 9 in 12 shifts · 2021: 38 in 24 shifts · 2022: 33 in 24 shifts · 2023: 8 in 12 shifts · 2024: 40 in 18 shifts · 2025: 11 in 8 shifts · 2026: 13 in 9 shifts.

Kind of question

SHARE OF QUESTIONS
  • Recall, single correct31%
  • Numerical answer25%
  • Conceptual16%
  • Application8%
  • Two statements8%
  • Multi-step5%
  • Calculation4%
  • Match the list2%
  • Assertion–reason2%

Most common asks: order/ranking of spin-only magnetic moments (2); statement i/ii on ionization enthalpy and cfse (1); highest electrode potential among 3d metals (1).

Profile

This chapter in numbers

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

Rank, all JEE chapters
#11
of 70 by weighted estimate
Rank in Chemistry
#5
of 21 chapters
Share of Chemistry
4.6%
of its questions, all shifts analysed
Busiest year
2024
1.9 questions a shift
Year to year
Some swing
varies by about 0.4 questions a shift
Long-run direction
+0.08
questions a shift, per year
Easy questions
35%
4% rated hard
Numerical answer
25%
0.8× the Chemistry rate
With a figure
1%
graph, diagram or structure
Study time
21 h
16 h on a 6-month plan
Marks per study hour
0.27
#5 of 70 chapters
Foundation for others
17%
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
  • 20209
  • 202138
  • 202233
  • 20238
  • 202440
  • 202511
  • 202613
  • Easy
  • Medium
  • Hard

What it asks you to do

SHARE OF QUESTIONS
  • Recall37%
  • Conceptual25%
  • Multi-step18%
  • Application12%
  • Calculation8%

Coverage

How much of the chapter JEE Main has used

We split the chapter into 107 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
9
Never asked
56

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

’17’20’21’22’23’24’25’26
030+questions in that year’s analysed shifts, shaded per shift
  • d-Block Elements

    As a topic: 110 questions in 8 of 8 years, most often single correct, 27% numerical answer. Recent asks: statement I/II on coloured and diamagnetic ions; statement I/II on catalytic properties; count correct statements on d-block catalysts.

  • f-Block Elements

    As a topic: 25 questions in 6 of 8 years, most often single correct, 12% numerical answer.

  • Cation Analysis

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

  • 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.

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.

  • Open105 · 69%322245301010

    31 ideas inside

    • OpenRepeated23 · 22%46822
    • OpenRepeated8 · 8%24
    • OpenRepeated7 · 7%222
    • OpenRepeated7 · 7%32
    • OpenRepeated5 · 5%3
    • OpenRepeated5 · 5%3
    • OpenRepeated4 · 4%
    • OpenRepeated4 · 4%3
    • OpenRepeated4 · 4%
    • OpenRepeated4 · 4%3
    • Open3 · 3%3
    • OpenRepeated3 · 3%2
    • OpenRepeated3 · 3%
    • OpenRepeated3 · 3%
    • OpenRepeated2 · 2%
    • Open2 · 2%2
    • OpenRepeated2 · 2%
    • OpenRepeated2 · 2%
    • Open2 · 2%2
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
    • Open1 · 1%
  • Open24 · 16%394242
  • Open4 · 3%
  • Open3 · 2%2
  • 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, 46 different ideas were tested; 26 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 153 The d- and f-Block Elements 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 2 · Q60Given below are two statements: Statement I: Among Zn, Mn, Sc and Cu, the energy required to remove the third valence electron is highest…MediumSingle correct
  2. 2 Apr 2026, Shift 2 · Q70Among Fe2+^{2+}, Fe3+^{3+}, Cr2+^{2+} and Zn2+^{2+}, the ion that shows positive borax bead test and with highest ionisation enthalpy is:MediumSingle correct
  3. 2 Apr 2026, Shift 2 · Q74Number of paramagnetic ions among the following d- and f-block metal ions is __________.…MediumNumerical value
  4. 4 Apr 2026, Shift 1 · Q60The correct statements among the following are, A. Mo(VI) and W(VI) are less stable than Cr(VI). B. Ce4+\mathrm{Ce^{4+}} and…HardOther
  5. 4 Apr 2026, Shift 1 · Q61Correct statements from the following are A. Potassium dichromate is an oxidising agent and it oxidises FeSO4\mathrm{FeSO_4} to…MediumOther
  6. 4 Apr 2026, Shift 2 · Q59Pairs of elements with the same number of electrons in their respective 4f orbital are [Atomic number: Eu-63, Gd-64, Dy-66, Ho-67, Tm-69,…MediumOther
  7. 4 Apr 2026, Shift 2 · Q62Consider ∣x∣|x| is the difference in oxidation states of Mn in highest manganese fluoride and highest manganese oxide. The ions with ∣x∣|x|…MediumOther
  8. 5 Apr 2026, Shift 1 · Q60Which of the following is NOT a physical or chemical characteristics of interstitial compounds?EasySingle correct
  9. 5 Apr 2026, Shift 2 · Q60Given below are two statements : Statement I : Presence of large number of unpaired electrons in transition metal atoms results in higher…MediumTwo statements
  10. 6 Apr 2026, Shift 1 · Q60The correct statements among the following are. A. Basic vanadium oxide is used in the manufacture of H2SO4\mathrm{H_2SO_4}. B. The spin-only…HardOther
  11. 6 Apr 2026, Shift 2 · Q60The correct order of first (ΔiH1\Delta_iH_1) and second (ΔiH2\Delta_iH_2) ionisation enthalpy values of Cr and Mn are : A. ΔiH1\Delta_iH_1 : Cr…MediumOther
  12. 8 Apr 2026, Shift 2 · Q60Given below are two statements : Statement I : The number of pairs among [Ti4+,V2+][\mathrm{Ti^{4+}, V^{2+}}], [V2+,Mn2+][\mathrm{V^{2+}, Mn^{2+}}],…MediumTwo statements
  13. 8 Apr 2026, Shift 2 · Q61Given below are two statements for catalytic properties of transition metals. Statement I : First row transition metals which act as…EasyTwo statements

JEE Main 202511 questions

  1. 2 Apr 2025, Shift 1 · Q62Choose the correct tests with respective observations. (A) CuSO4\mathrm{CuSO_4} (acidified with acetic acid) +…MediumOther
  2. 2 Apr 2025, Shift 2 · Q74The spin-only magnetic moment value of Mn+\mathrm{M^{n+}} ion formed among Ni, Zn, Mn and Cu that has the least enthalpy of atomisation is…MediumNumerical value
  3. 3 Apr 2025, Shift 1 · Q62The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are : A. Cr2+\mathrm{Cr^{2+}} B. Fe2+\mathrm{Fe^{2+}} C.…EasyOther
  4. 3 Apr 2025, Shift 1 · Q73Consider the following reactions A+NaCl+H2SO4→CrO2Cl2+Side Products\mathrm{A + NaCl + H_2SO_4 \rightarrow CrO_2Cl_2 + Side\ Products} (A: little amount)…MediumNumerical value
  5. 3 Apr 2025, Shift 2 · Q61Given below are two statements: Statement I : CrO3\mathrm{CrO_3} is a stronger oxidizing agent than MoO3\mathrm{MoO_3} Statement II : Cr(VI)…MediumTwo statements
  6. 3 Apr 2025, Shift 2 · Q73Among, Sc, Mn, Co and Cu, identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element…MediumNumerical value
  7. 4 Apr 2025, Shift 2 · Q61The incorrect relationship in the following pairs in relation to ionisation enthalpies is :MediumSingle correct
  8. 7 Apr 2025, Shift 1 · Q59The number of valence electrons present in the metal among Cr, Co, Fe and Ni which has the lowest enthalpy of atomisation isMediumSingle correct
  9. 7 Apr 2025, Shift 1 · Q61The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion (Mn+\mathrm{M^{n+}})…MediumSingle correct
  10. 7 Apr 2025, Shift 2 · Q61'X' is the number of acidic oxides among VO2\mathrm{VO_2}, V2O3\mathrm{V_2O_3}, CrO3\mathrm{CrO_3}, V2O5\mathrm{V_2O_5} and Mn2O7\mathrm{Mn_2O_7}.…MediumSingle correct
  11. 8 Apr 2025, Shift 2 · Q58The correct decreasing order of spin only magnetic moment values (BM) of Cu+\mathrm{Cu^+}, Cu2+\mathrm{Cu^{2+}}, Cr2+\mathrm{Cr^{2+}} and…EasySingle correct

JEE Main 202440 questions

  1. 4 Apr 2024, Shift 1 · Q69The element which shows only one oxidation state other than its elemental form is :EasySingle correct
  2. 4 Apr 2024, Shift 1 · Q86Consider the following reaction MnO2+KOH+O2→A+H2O\mathrm{MnO_2 + KOH + O_2 \rightarrow A + H_2O}. Product 'A' in neutral or acidic medium…MediumNumerical value
  3. 4 Apr 2024, Shift 2 · Q69A first row transition metal in its +2 oxidation state has a spin-only magnetic moment value of 3.86 BM. The atomic number of the metal isEasySingle correct
  4. 4 Apr 2024, Shift 2 · Q86A first row transition metal with highest enthalpy of atomisation, upon reaction with oxygen at high temperature forms oxides of formula…MediumNumerical value
  5. 5 Apr 2024, Shift 1 · Q69The metal that shows highest and maximum number of oxidation state is :EasySingle correct
  6. 5 Apr 2024, Shift 1 · Q86The spin-only magnetic moment value of the ion among Ti2+\mathrm{Ti^{2+}}, V2+\mathrm{V^{2+}}, Co3+\mathrm{Co^{3+}} and Cr2+\mathrm{Cr^{2+}},…MediumNumerical value
  7. 5 Apr 2024, Shift 1 · Q87In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame, resulted in green colour…HardNumerical valueHas a figure
  8. 5 Apr 2024, Shift 2 · Q69The number of ions from the following that have the ability to liberate hydrogen from a dilute acid is ________. Ti2+\mathrm{Ti^{2+}},…MediumSingle correct
  9. 5 Apr 2024, Shift 2 · Q86The fusion of chromite ore with sodium carbonate in the presence of air leads to the formation of products A and B along with the…MediumNumerical value
  10. 6 Apr 2024, Shift 1 · Q69The number of element from the following that do not belong to lanthanoids is Eu, Cm, Er, Tb, Yb and LuEasySingle correct
  11. 6 Apr 2024, Shift 1 · Q86Among CrO, Cr2O3\mathrm{Cr_2O_3} and CrO3\mathrm{CrO_3}, the sum of spin-only magnetic moment values of basic and amphoteric oxides is ________…MediumNumerical value
  12. 6 Apr 2024, Shift 1 · Q87The difference in the 'spin-only' magnetic moment values of KMnO4\mathrm{KMnO_4} and the manganese product formed during titration of…MediumNumerical value
  13. 6 Apr 2024, Shift 2 · Q86Among VO2+\mathrm{VO_2^+}, MnO4−\mathrm{MnO_4^-} and Cr2O72−\mathrm{Cr_2O_7^{2-}}, the spin-only magnetic moment value of the species with least…MediumNumerical value
  14. 8 Apr 2024, Shift 1 · Q72Match List I with List II LIST I (Name of the test): A. Borax bead test; B. Charcoal cavity test; C. Cobalt nitrate test; D. Flame test…MediumMatch the list
  15. 8 Apr 2024, Shift 1 · Q73Match List I with List II LIST I (Compound): A. Fe4[Fe(CN)6]3⋅xH2O\mathrm{Fe_4[Fe(CN)_6]_3\cdot xH_2O}; B. [Fe(CN)5NOS]4−[\mathrm{Fe(CN)_5NOS}]^{4-}; C.…MediumMatch the list
  16. 8 Apr 2024, Shift 1 · Q86The 'spin only' magnetic moment value of MO42−\mathrm{MO_4^{2-}} is ____________ BM. (Where M is a metal having least metallic radii. among…MediumNumerical value
  17. 8 Apr 2024, Shift 2 · Q69Preparation Steps of Potassium Permanganate · Easy · Two statements
  18. 9 Apr 2024, Shift 1 · Q68Aqueous Stability of Cu+ vs Cu2+ · Easy · Single correct
  19. 9 Apr 2024, Shift 1 · Q87Identifying Colorless Lanthanide Ions · Medium · Numerical value
  20. 9 Apr 2024, Shift 2 · Q66Electronic Configuration · Medium · Single correct
  21. 9 Apr 2024, Shift 2 · Q69Oxidation State Trends · Medium · Two statements
  22. 9 Apr 2024, Shift 2 · Q86Ionization Enthalpy Irregularities · Medium · Numerical value
  23. 1 Feb 2024, Shift 1 · Q90Open the question · Medium · Numerical value
  24. 1 Feb 2024, Shift 2 · Q68Ionization Enthalpy Irregularities · Medium · Single correct
  25. 1 Feb 2024, Shift 2 · Q69Oxidation State Trends · Medium · Assertion–reason
  26. 1 Feb 2024, Shift 2 · Q71Color and Catalysis · Easy · Single correct
  27. 27 Jan 2024, Shift 1 · Q67Spin-only Magnetism · Easy · Single correct
  28. 27 Jan 2024, Shift 1 · Q68Lanthanide Electronic Configuration · Easy · Single correct
  29. 27 Jan 2024, Shift 1 · Q80Chromyl Chloride Test Reactions · Medium · Single correct
  30. 29 Jan 2024, Shift 1 · Q67Thermal Decomposition of KMnO4 · Easy · Single correct
  31. 29 Jan 2024, Shift 1 · Q68Specific KMnO4 Oxidations in Neutral/Alkaline Medium · Medium · Single correct
  32. 30 Jan 2024, Shift 1 · Q64Open the question · Easy · Single correct
  33. 30 Jan 2024, Shift 1 · Q67Magnetic and Spectral Properties · Medium · Single correct
  34. 30 Jan 2024, Shift 2 · Q69Preparation Steps of Potassium Permanganate · Easy · Single correct
  35. 30 Jan 2024, Shift 2 · Q70Ligand-to-Metal Charge Transfer (LMCT) · Easy · Single correct
  36. 30 Jan 2024, Shift 2 · Q80Chromyl Chloride Test Reactions · Medium · Single correct
  37. 31 Jan 2024, Shift 1 · Q68Disproportionation of Manganate(VI) · Medium · Other
  38. 31 Jan 2024, Shift 1 · Q69Open the question · Easy · Other
  39. 31 Jan 2024, Shift 2 · Q69Acid-Base Character of Oxides · Medium · Other
  40. 31 Jan 2024, Shift 2 · Q90Chromyl Chloride Test Reactions · Easy · Numerical value

JEE Main 20238 questions

  1. 6 Apr 2023, Shift 1 · Q70Europium(II) and Ytterbium(II) as Reducing Agents · Medium · Single correct
  2. 8 Apr 2023, Shift 1 · Q80Electronic Configuration · Easy · Single correct
  3. 8 Apr 2023, Shift 2 · Q89Oxidation State Trends · Easy · Numerical value
  4. 10 Apr 2023, Shift 1 · Q68Standard Electrode Potential Trends · Hard · Single correct
  5. 10 Apr 2023, Shift 1 · Q79Preparation Steps of Potassium Dichromate · Medium · Two statements
  6. 10 Apr 2023, Shift 2 · Q89Spin-Only Magnetic Moment · Easy · Numerical value
  7. 12 Apr 2023, Shift 1 · Q71Actinoid vs Lanthanoid Contraction · Medium · Assertion–reason
  8. 13 Apr 2023, Shift 1 · Q70Lanthanide Oxidation States · Medium · Single correct

JEE Main 202233 questions

  1. 25 Jul 2022, Shift 1 · Q68Specific KMnO4 Oxidations in Acidic Medium · Easy · Single correct
  2. 25 Jul 2022, Shift 1 · Q87Standard Electrode Potential Trends · Hard · Numerical value
  3. 25 Jul 2022, Shift 2 · Q87Spin-only Magnetism · Medium · Numerical value
  4. 26 Jul 2022, Shift 2 · Q87Spin-only Magnetism · Medium · Numerical value
  5. 27 Jul 2022, Shift 1 · Q62Spin-only Magnetism · Easy · Two statements
  6. 27 Jul 2022, Shift 1 · Q71Permanganate Reactions · Hard · Two statements
  7. 27 Jul 2022, Shift 1 · Q72Open the question · Medium · Single correct
  8. 27 Jul 2022, Shift 2 · Q69Specific KMnO4 Oxidations in Neutral/Alkaline Medium · Medium · Single correct
  9. 27 Jul 2022, Shift 2 · Q80Confirmatory Tests · Easy · Single correct
  10. 27 Jul 2022, Shift 2 · Q87Specific KMnO4 Oxidations in Neutral/Alkaline Medium · Medium · Numerical value
  11. 28 Jul 2022, Shift 1 · Q88Disproportionation of Manganate · Medium · Numerical value
  12. 28 Jul 2022, Shift 2 · Q39HCl Limitation in KMnO4 Titrations · Easy · Assertion–reason
  13. 29 Jul 2022, Shift 1 · Q66Open the question · Easy · Single correct
  14. 29 Jul 2022, Shift 1 · Q69Color and Catalysis · Easy · Single correct
  15. 29 Jul 2022, Shift 1 · Q70Specific KMnO4 Oxidations in Neutral/Alkaline Medium · Medium · Single correct
  16. 29 Jul 2022, Shift 2 · Q70CFSE and Hydration Enthalpy Double-Hump · Medium · Single correct
  17. 30 Jul 2022, Shift 2 · Q58Color and Catalysis · Medium · Numerical value
  18. 24 Jun 2022, Shift 2 · Q66Melting Point Maxima and Anomalies · Easy · Single correct
  19. 24 Jun 2022, Shift 2 · Q87Disproportionation of Manganate(VI) · Easy · Numerical value
  20. 25 Jun 2022, Shift 1 · Q68Cerium(IV) as an Oxidizing Agent · Easy · Single correct
  21. 25 Jun 2022, Shift 1 · Q69Standard Electrode Potential Trends · Easy · Single correct
  22. 25 Jun 2022, Shift 2 · Q71Spin-only Magnetism · Medium · Single correct
  23. 26 Jun 2022, Shift 1 · Q86Spin-only Magnetism · Medium · Numerical value
  24. 26 Jun 2022, Shift 2 · Q69Lanthanide Oxidation States · Medium · Single correct
  25. 27 Jun 2022, Shift 1 · Q87Aqueous Stability of Cu+ vs Cu2+ · Medium · Numerical value
  26. 27 Jun 2022, Shift 1 · Q88Spin-only Magnetism · Medium · Numerical value
  27. 27 Jun 2022, Shift 2 · Q68Standard Electrode Potential Trends · Easy · Single correct
  28. 27 Jun 2022, Shift 2 · Q69Lanthanide Electronic Configuration · Medium · Single correct
  29. 28 Jun 2022, Shift 1 · Q68Lanthanide Oxidation States · Easy · Single correct
  30. 29 Jun 2022, Shift 1 · Q66Electronic Configuration · Medium · Single correct
  31. 29 Jun 2022, Shift 1 · Q86Preparation Steps of Potassium Dichromate · Medium · Numerical value
  32. 29 Jun 2022, Shift 1 · Q87Disproportionation of Manganate(VI) · Medium · Numerical value
  33. 29 Jun 2022, Shift 2 · Q86Spin-only Magnetic Moment · Medium · Numerical value

JEE Main 202138 questions

  1. 3 Aug 2021, Shift 1 · Q33Ionization Enthalpy Irregularities · Medium · Single correct
  2. 3 Aug 2021, Shift 1 · Q35Chromate-Dichromate pH Equilibrium · Medium · Single correct
  3. 3 Aug 2021, Shift 1 · Q38Open the question · Medium · Single correct
  4. 3 Aug 2021, Shift 1 · Q39Permanganate Reactions · Medium · Single correct
  5. 3 Aug 2021, Shift 2 · Q31Dichromate Reactions · Medium · Two statements
  6. 3 Aug 2021, Shift 2 · Q38Color and Catalysis · Easy · Single correct
  7. 3 Aug 2021, Shift 2 · Q39Cerium(IV) as an Oxidizing Agent · Medium · Single correct
  8. 4 Aug 2021, Shift 1 · Q40Lanthanide Electronic Configuration · Medium · Match the list
  9. 4 Aug 2021, Shift 2 · Q37Color and Catalysis · Easy · Single correct
  10. 26 Aug 2021, Shift 1 · Q39Color and Catalysis · Easy · Single correct
  11. 26 Aug 2021, Shift 1 · Q58Anomalous Electronic Configuration of Gadolinium · Medium · Numerical value
  12. 26 Aug 2021, Shift 1 · Q59Open the question · Medium · Numerical value
  13. 27 Aug 2021, Shift 1 · Q40Acid-Base Character of Oxides · Easy · Single correct
  14. 27 Aug 2021, Shift 2 · Q37Permanganate Reactions · Medium · Single correct
  15. 27 Aug 2021, Shift 2 · Q50Group III Hydroxides · Easy · Single correct
  16. 31 Aug 2021, Shift 1 · Q32Open the question · Medium · Single correct
  17. 31 Aug 2021, Shift 1 · Q39Identifying Diamagnetic Lanthanide Ions · Medium · Single correct
  18. 31 Aug 2021, Shift 2 · Q37Europium(II) as a Reducing Agent · Easy · Single correct
  19. 24 Feb 2021, Shift 1 · Q37Standard Electrode Potential Trends · Easy · Single correct
  20. 24 Feb 2021, Shift 1 · Q38Open the question · Easy · Single correct
  21. 24 Feb 2021, Shift 2 · Q38Acid-Base Character of Oxides · Medium · Single correct
  22. 24 Feb 2021, Shift 2 · Q39Density Trends and Maxima · Easy · Single correct
  23. 25 Feb 2021, Shift 1 · Q38Cerium(IV) as an Oxidizing Agent · Medium · Two statements
  24. 25 Feb 2021, Shift 1 · Q39Electronic Configuration · Medium · Single correct
  25. 25 Feb 2021, Shift 2 · Q38Open the question · Easy · Single correct
  26. 25 Feb 2021, Shift 2 · Q59Spin-only Magnetism · Medium · Numerical value
  27. 26 Feb 2021, Shift 1 · Q38Lanthanide Oxidation States · Medium · Single correct
  28. 26 Feb 2021, Shift 1 · Q59Chromate-Dichromate pH Equilibrium · Easy · Numerical value
  29. 22 Jul 2021, Shift 2 · Q40Spin-only Magnetism · Medium · Single correct
  30. 25 Jul 2021, Shift 1 · Q38Oxidation State Trends · Easy · Other
  31. 25 Jul 2021, Shift 2 · Q39Spin-only Magnetic Moment · Easy · Single correct
  32. 25 Jul 2021, Shift 2 · Q58Lanthanide Electronic Configuration · Easy · Numerical value
  33. 16 Mar 2021, Shift 2 · Q38Magnetic and Spectral Properties · Medium · Single correct
  34. 16 Mar 2021, Shift 2 · Q39Stability of Transition Metal Halides · Medium · Single correct
  35. 17 Mar 2021, Shift 1 · Q38Spin-only Magnetism · Easy · Single correct
  36. 17 Mar 2021, Shift 1 · Q39Permanganate Reactions · Medium · Two statements
  37. 17 Mar 2021, Shift 2 · Q39Oxidation State Trends · Easy · Single correct
  38. 18 Mar 2021, Shift 2 · Q39Spin-only Magnetism · Medium · Single correct

JEE Main 20209 questions

  1. 8 Jan 2020, Shift 1 · Q36Ionization Enthalpy Irregularities · Medium · Single correct
  2. 9 Jan 2020, Shift 1 · Q36Lanthanide Electronic Configuration · Medium · Single correct
  3. 9 Jan 2020, Shift 2 · Q33NaOH Reactions with Amphoteric Elements · Medium · Single correct
  4. 9 Jan 2020, Shift 2 · Q49Open the question · Medium · Numerical value
  5. 3 Sep 2020, Shift 1 · Q35Open the question · Easy · Single correct
  6. 3 Sep 2020, Shift 2 · Q35Spin-only Magnetism · Medium · Single correct
  7. 4 Sep 2020, Shift 2 · Q35HCl Limitation in KMnO4 Titrations · Medium · Other
  8. 5 Sep 2020, Shift 1 · Q37Lanthanide Electronic Configuration · Easy · Single correct
  9. 6 Sep 2020, Shift 2 · Q38Mischmetal Composition and Uses · Easy · Single correct

JEE Main 20171 question

  1. 2 Apr 2017 (offline) · Q47Acid-Base Character of Oxides · 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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