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Chemistry - Coordination Compounds

Practise 74 COMEDK previous year questions on Coordination Compounds, compiled from papers spanning 2012 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 COMEDK tests.

Coordination Compounds has been asked in 15 of the 15 years of COMEDK papers analysed (2012–2026), with 74 questions in all. 27% of them were easy, 65% moderate and 8% tough. Most of its questions came from 2023, with 15 questions that year. In the last three years (2024–2026) it had 31 questions across 10 papers, about 3.1 per paper.

The chapter's 7 topics are not weighted equally: Terminology of coordination compounds (23 questions, 31%), Isomerism of coordination compounds (17 questions, 23%), and Crystal Field Theory (14 questions, 19%) have been asked the most. Over the last five years the most frequent topics have been Isomerism of coordination compounds (14), Crystal Field Theory (12), and Terminology of coordination compounds (11). Nomenclature of coordination compounds has produced the most tough questions (2).

  1. 1Match the Coordination compounds in Column I with the type of stereoisomerism given in Column II exhibited by them. Column I Column II A. P.09 May, 2026 (S1)Isomerism of coordination compounds
  2. 2The Crystal Field Stabilisation energy of (i) and (ii) are ----- and ------- respectively.09 May, 2026 (S1)Crystal Field Theory
  3. 3Identify the complex which exhibits all 3 characteristics; paramagnetic; high spin configuration; octahedral geometry09 May, 2026 (S2)Crystal Field Theory
  4. 4Which one of the following complex-isomerism pair matches correctly?09 May, 2026 (S2)Isomerism of coordination compounds
  5. 5The number of geometrical isomers in the following metal complexes and are25 May, 2025 (Shift)Isomerism of coordination compounds
  6. 6The wavelength absorbed by the complex (assuming tetrahedral geometry) for the d-d transition is 600 nm. The crystal field splitting energy 25 May, 2025 (Shift)Crystal Field Theory
  7. 7The 'd' electronic configuration of and respectively are _____ and ____ . [Given: Atomic number of and ]25 May, 2025 (Shift)Crystal Field Theory
  8. 8An aqueous solution of (Molar mass ) containing 2.665 g of the solute after processing, when treated with excess of gave 2.87 g of AgCl (Mol10 May, 2025 (S1)Terminology of coordination compounds
  9. 9Which one of the following coordination compounds will exhibit both geometrical and optical isomerism?10 May, 2025 (S1)Isomerism of coordination compounds
  10. 10Arrange the following compounds in the decreasing order of the molar conductivities of their aqueous solutions.10 May, 2025 (S1)Terminology of coordination compounds
  11. 11Match the coordination compounds in Column I having the given type of hybridisation of ion and magnetic moment as given in Column II. \( {ar10 May, 2025 (S1)Werner's theory and Valence Bond Theory
  12. 12A transition metal M forms 4 homoleptic octahedral coordination compounds, A, B, C and D of the type [MX6] with monodentate ligands and d re10 May, 2025 (S2)Crystal Field Theory
  13. 13The correct order of spin only magnetic moments among the following is: [Given: Atomic numbers: ]10 May, 2025 (S2)Crystal Field Theory
  14. 14Choose the coordination compound which does not exhibit Optical activity.10 May, 2025 (S2)Isomerism of coordination compounds
  15. 15Which one of the following structures in Column I does not have the correct IUPAC name as given in Column II. \( {array}{|c|l|l|} { S.No. } 10 May, 2025 (S2)Nomenclature of coordination compounds
  16. 16Which of the coordination compounds [(i) to (v)] are used for the following processes: A: Electroplating B: Removal of excess copper from hu10 May, 2025 (S3)Terminology of coordination compounds
  17. 17Which of the following compounds has electrons symmetrically distributed in both and eg orbitals?10 May, 2025 (S3)Crystal Field Theory
  18. 18Arrange the complex ions in the increasing order of their magnetic moments A. B. C. D.10 May, 2025 (S3)Crystal Field Theory
  19. 19The type of hybridisation and the spin only magnetic moment for the complex are respectively:2024 (Afternoon Shift)Werner's theory and Valence Bond Theory
  20. 20The molar conductivity of the complex is found to be the same as that of a electrolyte. The structural formula of the compound is :2024 (Afternoon Shift)Terminology of coordination compounds
  21. 21On the basis of crystal field theory, electronic configuration of a low spin complex is:2024 (Afternoon Shift)Crystal Field Theory
  22. 22Which of the following 2 compounds exhibit both Geometrical and Structural isomerism?2024 (Evening Shift)Isomerism of coordination compounds
  23. 23Based on Crystal Field theory, match the Complex ions listed in Column I with the electronic configuration in the d orbitals of the central 2024 (Evening Shift)Crystal Field Theory
  24. 24Given below are 4 statements. Two of these are correct statements. Identify them. A. is easily oxidised to in the presence of a strong ligan2024 (Evening Shift)Crystal Field Theory
  25. 25Based on Valence Bond Theory, match the complexes listed in Column I with the number of unpaired electrons on the central metal ion, given i2024 (Evening Shift)Werner's theory and Valence Bond Theory
  26. 26Observe the given below reaction. Aqueous A, B respectively are2024 (Memory Based)Stability of complex ion
  27. 27The species having tetrahedral shape is2024 (Memory Based)Werner's theory and Valence Bond Theory
  28. 28The oxidation number of oxygen in and is2024 (Memory Based)Terminology of coordination compounds
  29. 29A d - block metal forms a compound . Calculate its spin magnetic moment value.2024 (Morning Shift)Terminology of coordination compounds
  30. 30A Coordination compound is represented by the formula . This compound required one mole of to form a pale yellow precipitate of . What is th2024 (Morning Shift)Terminology of coordination compounds
  31. 31Choose the incorrect statement from the following.2024 (Morning Shift)Isomerism of coordination compounds
  32. 32Which one of the following is an incorrect statement pertaining to the properties of Coordination compounds?2023 (Evening Shift)Isomerism of coordination compounds
  33. 33Which one of the following Coordination entities exhibits Facial and Meridional isomerism?2023 (Evening Shift)Isomerism of coordination compounds
  34. 34Identify the correct IUPAC name of2023 (Evening Shift)Nomenclature of coordination compounds
  35. 35Match the Coordination compounds given in Column I with their characteristic features listed in Column II. S.No. Coordination compounds S.No2023 (Evening Shift)Terminology of coordination compounds
  36. 36is purple while is colourless because2023 (Memory Based)Crystal Field Theory
  37. 37Which among the following is diamagnetic?2023 (Memory Based)Werner's theory and Valence Bond Theory
  38. 38Which one of the following is an important component of chlorophyll2023 (Memory Based)Terminology of coordination compounds
  39. 39The complex ion shows2023 (Memory Based)Isomerism of coordination compounds
  40. 40Aqueous changes its colour from sky blue to deep blue on addition of because2023 (Memory Based)Stability of complex ion
  41. 41Which of the following complex show optical isomerism? (i) cis- (ii) cis- (iii) cis- (iv) cis2023 (Memory Based)Isomerism of coordination compounds
  42. 42Mohr's salt has the formula2023 (Memory Based)Terminology of coordination compounds
  43. 43Aqueous changes its colour from sky blue to deep blue on addition of because2023 (Morning Shift)Terminology of coordination compounds
  44. 44Which among the following is diamagnetic?2023 (Morning Shift)Werner's theory and Valence Bond Theory
  45. 45The complex ion shows2023 (Morning Shift)Isomerism of coordination compounds
  46. 46Which of the following complex show optical isomerism? (i) (ii) (iii) (iv)2023 (Morning Shift)Isomerism of coordination compounds
  47. 47The complex which does not show optical isomerism is2022Isomerism of coordination compounds
  48. 48The oxidation state of nickel in is2022Werner's theory and Valence Bond Theory
  49. 49Which type of ligand is EDTA?2021Terminology of coordination compounds
  50. 50The correct IUPAC name of the coordination compound is2021Nomenclature of coordination compounds

Frequently Asked Questions

1.How many questions are available for Coordination Compounds?

This chapter includes 74 questions compiled from COMEDK papers spanning 2012 to 2026.

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

These are COMEDK questions specifically for the Coordination Compounds chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Coordination Compounds an important chapter for COMEDK Chemistry?

Coordination Compounds has appeared in 15 of the 15 years of COMEDK papers covered here, with 74 questions across 24 papers - about 3 per paper it appears in.

4.What is the difficulty level of Coordination Compounds questions in COMEDK?

Of the 74 questions analysed for this chapter, 27% are easy, 65% moderate and 8% tough. 2023 had the most, with 15 questions.

5.Which topics in Coordination Compounds should I focus on?

These topics have carried the most weightage in Coordination Compounds:

  • Terminology of coordination compounds - 23 questions (31%)
  • Isomerism of coordination compounds - 17 questions (23%)
  • Crystal Field Theory - 14 questions (19%)
  • Nomenclature of coordination compounds has produced the most tough questions (2).
6.Is Coordination Compounds's weightage in COMEDK going up or down?

Across all 24 papers analysed, Coordination Compounds has averaged about 3.1 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 3.1 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.