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Chemistry - Coordination Compounds

Practise 66 KCET previous year questions on Coordination Compounds, compiled from papers spanning 2007 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 KCET tests.

Coordination Compounds has been asked in 20 of the 20 years of KCET papers analysed (2007–2026), with 66 questions in all. 62% of them were easy, 33% moderate and 5% tough. Most of its questions came from 2012, with 6 questions that year. In the last three years (2024–2026) it had 12 questions across 3 papers, about 4 per paper.

The chapter's 7 topics are not weighted equally: Terminology of coordination compounds (20 questions, 30%), Crystal Field Theory (14 questions, 21%), and Nomenclature of coordination compounds (13 questions, 20%) have been asked the most. Over the last five years the most frequent topics have been Crystal Field Theory (5), Werner's theory and Valence Bond Theory (5), and Terminology of coordination compounds (3). Crystal Field Theory has produced the most tough questions (2).

  1. 1Which of the following is the most stable complex ion?2026Stability of complex ion
  2. 2How many ions per molecule are produced from the complex in solution?2026Terminology of coordination compounds
  3. 3Given below are two statements: Statement-I: The bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vaca2026Carbonyl Compounds
  4. 4Match List-I with List-II List-I (Complex) List-II (Geometry) (a) (i) Trigonal bipyramidal (b) (ii) Octahedral (c) (iii) Tetrahedral (d) (iv2026Werner's theory and Valence Bond Theory
  5. 5A ligand which has two different donor atoms and either of the two ligates with the central metal atom/ion in the complex is called2025Terminology of coordination compounds
  6. 6Which of the following statements are true about ? (a) The complex has tetrahedral geometry (b) Co-ordination number of Ni is 2 and oxidatio2025Werner's theory and Valence Bond Theory
  7. 7Which formula and its name combination is incorrect?2025Nomenclature of coordination compounds
  8. 8In the complex ion , the co-ordination number of Fe is2025Terminology of coordination compounds
  9. 9On treating 100 mL of 0.1 M aqueous solution of the complex with excess of of AgCl was obtained. The complex is2024Stability of complex ion
  10. 10The complex compounds and are2024Isomerism of coordination compounds
  11. 11Which of the following statements are true about ion ? I. The complex has octahedral geometry. II. Coordination number of Co is 3 and oxidat2024Crystal Field Theory
  12. 12Match the following. Codes2024Crystal Field Theory
  13. 13If a didentate ligand ethane-1, 2-diamine is progressively added in the molar ratio en : to aq solution, following co-ordination entities ar2023Crystal Field Theory
  14. 14Which of the following is an organometallic compound?2023Carbonyl Compounds
  15. 15Which formula and name combination is incorrect?2023Nomenclature of coordination compounds
  16. 16Which of the following system in an octahedral complex has maximum unpaired electrons?2023Crystal Field Theory
  17. 17A transition metal exists in its highest oxidation state. It is expected to behave as2022Werner's theory and Valence Bond Theory
  18. 18What will be the value of in , if the magnetic moment, ?2022Werner's theory and Valence Bond Theory
  19. 19The correct IUPAC name of cis-platin is2022Nomenclature of coordination compounds
  20. 20Crystal field splitting energy (CFSE) for is . The crystal field splitting energy (CFSE) for will be2022Crystal Field Theory
  21. 21The complex hexamineplatinum(IV)chloride will give number of ions on ionisation.2022Werner's theory and Valence Bond Theory
  22. 22For the crystal field splitting in octahedral complexes,2021Crystal Field Theory
  23. 23The IUPAC name of is2021Nomenclature of coordination compounds
  24. 24Homoleptic complexes among the following are (A) (B) (C)2021Terminology of coordination compounds
  25. 25The correct order for wavelengths of light absorbed in the complex ions and is2021Crystal Field Theory
  26. 26The coordination number of and in the complex ions, and are respectively2020Terminology of coordination compounds
  27. 27Number of stereoisomers exhibited by is2020Isomerism of coordination compounds
  28. 28Give the IUPAC name of is2020Nomenclature of coordination compounds
  29. 29Which among the following is the strongest ligand?2019Terminology of coordination compounds
  30. 30The formula of penta aquanitrato chromium (III) nitrate is,2019Nomenclature of coordination compounds
  31. 31\( [ {Fe} ( {NO}_{2} )_{3} {Cl}_{3} ] \) and \( [ {Fe}( {O}- {NO})_{} {Cl}_{3} ] \) shows2018Isomerism of coordination compounds
  32. 32The IUPAC name of \( [ {Co} ( {NH}_{3} )_{4} {Cl} ( {NO}_{2} ) ] {Cl} \) is2018Nomenclature of coordination compounds
  33. 33The correct set of quantum number for the unpaired electrons of chlorine atom is2017Crystal Field Theory
  34. 34The correct statement regarding defect in solids is2017Terminology of coordination compounds
  35. 35Extraction of chlorine from brine solution is based on2017Crystal Field Theory
  36. 36The number of isomers possible for the octahedral complex \( [ {CoCl}_{2}(e n) ( {NH}_{3} )_{2} ]^{+} \)is,2016Isomerism of coordination compounds
  37. 37\( {CO} \) is a stronger ligand than \( {Cl}^{-} \), because2016Crystal Field Theory
  38. 38Which of the following sequence is correct regarding field strength of ligands as per spectrochemical series?2016Werner's theory and Valence Bond Theory
  39. 39As per IUPAC norms, the name of the complex \( [ {Co}(e n)_{2}(O N O) C l ] C l \) is2016Nomenclature of coordination compounds
  40. 40Which of the following will be able to show geometrical isomerism ?2015Isomerism of coordination compounds
  41. 41How many ions per molecule are produced in the solution when Mohr salt is dissolved in excess of water?2015Terminology of coordination compounds
  42. 42The complex ion having minimum magnitude of \( _{0}(C F S E) \) is2015Crystal Field Theory
  43. 43For the equilibrium : \( {CaCO}_{3}(s) {CaO}(s)+ {CO}_{2}(g) ; {K}_{p}=1.64 {~atm} \) at \( 1000 {~K} \) \( 50 {~g} \) of \( {CaCO}_{3} \) i2014Terminology of coordination compounds
  44. 44Butylated hydroxy toluene as a food additive acts as2014Nomenclature of coordination compounds
  45. 45For \( {Cr}_{2} {O}_{7}{ }^{2-}+14 {H}^{+}+6 e^{-} 2 {Cr}^{3+}+7 {H}_{2} {O} ; {E}^{ }=1.33 {~V} {At} [ {Cr}_{2} {O}_{7}{ }^{2-} ]=4.5 \) mi2014Werner's theory and Valence Bond Theory
  46. 46A group of atoms can function as a ligand only when2013Terminology of coordination compounds
  47. 47The atomic number of cobalt is 27. The EAN of cobalt in is2012Terminology of coordination compounds
  48. 48The "spin only" magnetic moment of in aqueous solution would be [At. no. of ]2012Crystal Field Theory
  49. 49A ligand is a2012Terminology of coordination compounds
  50. 50Which of the following is a negatively charged bidentate ligand?2012Terminology of coordination compounds

Frequently Asked Questions

1.How many questions are available for Coordination Compounds?

This chapter includes 66 questions compiled from KCET papers spanning 2007 to 2026.

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

These are KCET 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 KCET Chemistry?

Coordination Compounds has appeared in 20 of the 20 years of KCET papers covered here, with 66 questions across 20 papers - about 3 per paper it appears in.

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

Of the 66 questions analysed for this chapter, 62% are easy, 33% moderate and 5% tough. 2012 had the most, with 6 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 - 20 questions (30%)
  • Crystal Field Theory - 14 questions (21%)
  • Nomenclature of coordination compounds - 13 questions (20%)
  • Crystal Field Theory has produced the most tough questions (2).
6.Is Coordination Compounds's weightage in KCET going up or down?

Across all 20 papers analysed, Coordination Compounds has averaged about 3.3 questions per paper. In the last three years (2024–2026), that average has risen, at about 4.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.