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Chemistry - d and f Block Elements

Practise 260 JEE Main previous year questions on d and f Block Elements, compiled from papers spanning 2002 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Main tests.

d and f Block Elements has been asked in 24 of the 25 years of JEE Main papers analysed (2002–2026), with 259 questions in all. 30% of them were easy, 56% moderate and 15% tough. Most of its questions came from 2024, with 45 questions that year. In the last three years (2024–2026) it had 81 questions across 49 papers, about 1.7 per paper.

The chapter's 3 topics are not weighted equally: Properties of D-block elements (125 questions, 48%), Compounds of Transition Metals (80 questions, 31%), and F-Block elements (54 questions, 21%) have been asked the most. Properties of D-block elements has also led over the last five years, with 78 questions. Compounds of Transition Metals has produced the most tough questions (18).

  1. 1Given below are two statements: Statement I: The number of pairs among , , and in which both ions are coloured is . Statement II: The number08 Apr, 2026 (E)Properties of D-block elements
  2. 2Given below are two statements for catalytic properties of transition metals. Statement I: First row transition metals which act as catalyst08 Apr, 2026 (E)Properties of D-block elements
  3. 3The correct statements among the following are. A. Basic vanadium oxide is used in the manufacture of . B. The spin-only magnetic moment val06 Apr, 2026 (M)Properties of D-block elements
  4. 4The correct order of first and second ionisation enthalpy values of Cr and Mn are : A. Cr Mn B. Cr Mn C. Mn Cr D. Mn Cr Choose the correct a06 Apr, 2026 (E)Properties of D-block elements
  5. 5Which of the following is NOT a physical or chemical characteristics of interstitial compounds?05 Apr, 2026 (M)Properties of D-block elements
  6. 6Given below are two statements : Statement I: Presence of large number of unpaired electrons in transition metal atoms results in higher ent05 Apr, 2026 (E)Properties of D-block elements
  7. 7A paper dipped in a dil. solution of ' ' upon treatment with gas turns into green. The compound ' ' is :05 Apr, 2026 (E)Compounds of Transition Metals
  8. 8The correct statements among the following are, A. and are less stable than . B. and are oxidant while and are reductant. C. and have seven 04 Apr, 2026 (M)Properties of D-block elements
  9. 9Correct statements from the following are A. Potassium dichromate is an oxidising agent and it oxidises to in acidic medium. B. Sodium dichr04 Apr, 2026 (M)Compounds of Transition Metals
  10. 10Pairs 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, Yb04 Apr, 2026 (E)F-Block elements
  11. 11Consider is the difference in oxidation states of Mn in highest manganese fluoride and highest manganese oxide. The ions with number of unpa04 Apr, 2026 (E)Properties of D-block elements
  12. 12Which of the following sets includes all the species that will change the orange colour of in acidic medium?02 Apr, 2026 (M)Compounds of Transition Metals
  13. 13Number of paramagnetic ions among the following d- and f-block metal ions is _______. (Atomic number of )02 Apr, 2026 (E)Properties of D-block elements
  14. 14Given below are two statements: Statement I : The number of pairs, from the following, in which both the ions are coloured in aqueous soluti28 Jan, 2026 (M)Properties of D-block elements
  15. 15Consider the following statements about manganate and permanganate ions. Identify the correct statements. A. The geometry of both manganate 28 Jan, 2026 (E)Properties of D-block elements
  16. 16" X " is an oxoanion of the lightest element of group 7 (in the periodic table). The metal is in +6 oxidation state in " X ". The color of t24 Jan, 2026 (E)Compounds of Transition Metals
  17. 17The oxidation state of chromium in the final product formed in the reaction between KI and acidified solution is:23 Jan, 2026 (E)Compounds of Transition Metals
  18. 18A first row transition metal does not liberate gas from dilute HCl.1 mol of aqueous solution of is treated with excess of aqueous KCN and th22 Jan, 2026 (M)Properties of D-block elements
  19. 19Given below are two statements : Statement I : The first ionization enthalpy of Cr is lower than that of Mn . Statement II : The second and 22 Jan, 2026 (E)Properties of D-block elements
  20. 20Among the following oxides of 3 d elements, the number of mixed oxides are 。22 Jan, 2026 (E)Properties of D-block elements
  21. 21, in acidic medium, disproportionates to :21 Jan, 2026 (M)Properties of D-block elements
  22. 22Consider the following reactions: In the product ' ', ' ' is the number of units, ' ' is the total number oxygen atoms present and ' ' is th21 Jan, 2026 (M)Compounds of Transition Metals
  23. 23Given below are some of the statements about Mn and . Identify the correct statements. A. Mn forms the oxide , in which Mn is in its highest21 Jan, 2026 (E)Properties of D-block elements
  24. 24On heating a mixture of common salt and in equal amount along with concentrated in a test tube, a gas is evolved. Formula of the gas evolved21 Jan, 2026 (E)Compounds of Transition Metals
  25. 25The correct decreasing order of spin only magnetic moment values of and ions is :08 Apr, 2025 (E)Properties of D-block elements
  26. 26The number of valence electrons present in the metal among and Ni which has the lowest enthalpy of atomisation is07 Apr, 2025 (M)Properties of D-block elements
  27. 27The first transition series metal ' M ' has the highest enthalpy of atomisation in its series. One of its aquated ion exists in green colour07 Apr, 2025 (M)Properties of D-block elements
  28. 28' X ' is the number of acidic oxides among , and . The primary valency of cobalt in is Y. The value of is :07 Apr, 2025 (E)Properties of D-block elements
  29. 29Pair of transition metal ions having the same number of unpaired electrons is :04 Apr, 2025 (M)Properties of D-block elements
  30. 30acts as an oxidising agent in acidic medium. ' X ' is the difference between the oxidation states of Mn in reactant and product. ' Y ' is th04 Apr, 2025 (M)Compounds of Transition Metals
  31. 31The incorrect relationship in the following pairs in relation to ionisation enthalpies is :04 Apr, 2025 (E)F-Block elements
  32. 32The metal ions that have the calculated spin only magnetic moment value of 4.9 B.M. are A. B. C. D. E. Choose the correct answer from the op03 Apr, 2025 (M)Properties of D-block elements
  33. 33Consider the following reactions The number of terminal ' O ' present in the compound ' C ' is ______.03 Apr, 2025 (M)Compounds of Transition Metals
  34. 34Given below are two statements : Statement I : is a stronger oxidizing agent than Statement II : is more stable than In the light of the abo03 Apr, 2025 (E)Properties of D-block elements
  35. 35Among, and Cu , identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element in its +2 oxi03 Apr, 2025 (E)Properties of D-block elements
  36. 36The molar mass of the water insoluble product formed from the fusion of chromite ore \( ( {FeCr}_2 {O}_4 )\) with \( {Na}_2 {CO}_3\) in pres29 Jan, 2025 (M)Compounds of Transition Metals
  37. 37Which of the following oxidation reactions are carried out by both and in acidic medium? A. B. C. D. E. Choose the correct answer from the o28 Jan, 2025 (M)Compounds of Transition Metals
  38. 38Consider ' ' is the number of lone pair of electrons present in the equatorial position of the most stable structure of . The ions from the 28 Jan, 2025 (M)Properties of D-block elements
  39. 39The amphoteric oxide among and , upon reaction with alkali leads to formation of an oxide anion. The oxidation state of V in the oxide anion28 Jan, 2025 (E)Properties of D-block elements
  40. 40Identify the inorganic sulphides that are yellow in colour : (A) (B) (C) (D) (E) Choose the correct answer from the options given below :28 Jan, 2025 (E)Compounds of Transition Metals
  41. 41The spin only magnetic moment ( ) value (B.M.) of the compound with strongest oxidising power among and VO is ____ B.M. (Nearest integer).28 Jan, 2025 (E)Properties of D-block elements
  42. 42Preparation of potassium permanganate from involves two step process in which the 1st step is a reaction with KOH and to produce24 Jan, 2025 (M)Compounds of Transition Metals
  43. 43Which of the following ions is the strongest oxidizing agent? (Atomic Number of )24 Jan, 2025 (M)F-Block elements
  44. 44Find the compound ' A ' from the following reaction sequences.24 Jan, 2025 (E)Compounds of Transition Metals
  45. 45The correct set of ions (aqueous solution) with same colour from the following is:23 Jan, 2025 (M)Properties of D-block elements
  46. 46Consider the following reactions The products and , respectively are :23 Jan, 2025 (E)Compounds of Transition Metals
  47. 47Match List - I with List - II. {array}{llll} & List - I & & List - II \\(A) & Bronze & (I) & {Cu}, {Ni} \\(B) & Brass & (II) & {Fe}, {Cr}, {23 Jan, 2025 (E)Properties of D-block elements
  48. 48Lanthanoid ions with configuration are : (A) (B) (C) (D) (E) Choose the correct answer from the options given below :22 Jan, 2025 (M)F-Block elements
  49. 49Niobium ( Nb ) and ruthenium have " " and " " number of electrons in their respective 4 d orbitals. The value of is ______ -.22 Jan, 2025 (E)Properties of D-block elements
  50. 50\(0.05 {M} {CuSO}_4\) when treated with \(0.01 {M} {K}_2 {Cr}_2 {O}_7\) gives green colour solution of \( {Cu}_2 {Cr}_2 {O}_7\). The two sol09 Apr, 2024 (M)Compounds of Transition Metals

Frequently Asked Questions

1.How many questions are available for d and f Block Elements?

This chapter includes 260 questions compiled from JEE Main papers spanning 2002 to 2026.

2.Are these questions only from JEE Main, or from other exams too?

These are JEE Main questions specifically for the d and f Block Elements chapter. Questions from other exams like NTA Abhyas (JEE Main) or JEE Advanced are organised separately under their respective exam sections.

3.Is d and f Block Elements an important chapter for JEE Main Chemistry?

d and f Block Elements has appeared in 24 of the 25 years of JEE Main papers covered here, with 260 questions across 155 papers - about 2 per paper it appears in.

4.What is the difficulty level of d and f Block Elements questions in JEE Main?

Of the 259 questions analysed for this chapter, 30% are easy, 56% moderate and 15% tough. 2024 had the most, with 45 questions.

5.Which topics in d and f Block Elements should I focus on?

These topics have carried the most weightage in d and f Block Elements:

  • Properties of D-block elements - 125 questions (48%)
  • Compounds of Transition Metals - 80 questions (31%)
  • F-Block elements - 54 questions (21%)
  • Compounds of Transition Metals has produced the most tough questions (18).
6.Is d and f Block Elements's weightage in JEE Main going up or down?

Across all 155 papers analysed, d and f Block Elements has averaged about 1.7 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.