Chemistry - Coordination Compounds
Practise 28 WBJEE previous year questions on Coordination Compounds, compiled from papers spanning 2009 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 WBJEE tests.
Coordination Compounds has been asked in 15 of the 18 years of WBJEE papers analysed (2009–2026), with 28 questions in all. 14% of them were easy, 71% moderate and 14% tough. Most of its questions came from 2026, with 4 questions that year. In the last three years (2024–2026) it had 6 questions across 3 papers, about 2 per paper.
The chapter's 6 topics are not weighted equally: Werner's theory and Valence Bond Theory (11 questions, 39%), Terminology of coordination compounds (7 questions, 25%), and Crystal Field Theory (6 questions, 21%) have been asked the most. Werner's theory and Valence Bond Theory has also led over the last five years, with 6 questions. Crystal Field Theory has produced the most tough questions (2).
- 1The calculated magnetic moment for low spin is2026Terminology of coordination compounds
- 2The correct order of conductivity of (M) separate aqueous solutions of (i); (ii); (iii) and (iv) each containing octahedral complex species 2026Terminology of coordination compounds
- 3For the metal complex , coordination number, oxidation number, number of d-electrons and number of unpaired d-electrons are respectively2026Terminology of coordination compounds
- 4Which of the following have tetrahedral structure?2026Werner's theory and Valence Bond Theory
- 5Identify ' ' and ' ' in the following reaction2025Terminology of coordination compounds
- 6Which of the following ion/ions is/are diamagnetic?2024Werner's theory and Valence Bond Theory
- 7The correct statement about the magnetic properties of \( [ {Fe}( {CN})_6 ]^{3-}\) and \( [ {FeF}_6 ]^{3-}\) is2023Werner's theory and Valence Bond Theory
- 8Which of the following statements is incorrect?2023Werner's theory and Valence Bond Theory
- 9Nickel combines with a uninegative monodentate ligand \( ( {X}^{-} )\)to form a paramagnetic complex \( [ {NiX}_4 ]^{2-}\). The hybridisatio2023Werner's theory and Valence Bond Theory
- 10Choose the correct statement for the complex ion (Atomic no. of )2022Werner's theory and Valence Bond Theory
- 11A solution is made by a concentrated solution of with a concentrated solution of in acetic acid. A solution of a salt containing metal is ad2021Stability of complex ion
- 12Indicate the number of unpaired electrons in and2021Crystal Field Theory
- 13Which of the following compounds have magnetic moment identical with2021Crystal Field Theory
- 14Indicate the correct IUPAC name of the co-ordination compound shown in the figure.2020Nomenclature of coordination compounds
- 15The conductivity measurement of a coordination compound of cobalt (III) shows that it dissociates into 3 ions in solution. The compound is2019Werner's theory and Valence Bond Theory
- 16Compounds with spin-only magnetic moment equivalent to five unpaired electrons are2019Crystal Field Theory
- 17Silver chloride dissolves in excess of ammonium hydroxide solution. The cation present in the resulting solution is2018Crystal Field Theory
- 18Ferric ion forms a prussian blue precipitate due to the formation of2018Crystal Field Theory
- 19The number of unpaired electrons in and respectively are2017Werner's theory and Valence Bond Theory
- 20Cold ferrous sulphate solution on absorptive of NO develops brown colour due to the formation of2015Werner's theory and Valence Bond Theory
- 21Which of the following compounds does not exhibit optical isomerism? en = ethylenediamine).2015Isomerism of coordination compounds
- 22Amongst , and the paramagnetic species are2013Crystal Field Theory
- 23Addition of excess potassium iodide solution to a solution of mereuric chloride gives the halide complex2013Werner's theory and Valence Bond Theory
- 24In basic medium the amount of in a solution can be estimated with the dimethylglyoxime reagent. The correct statement(s) about the reaction 2013Terminology of coordination compounds
- 25In the brown ring complex nitric oxide behaves as2012Stability of complex ion
- 26In hemoglobin the metal ion present is2010Terminology of coordination compounds
- 27When is treated with2010Terminology of coordination compounds
- 28In Cu-ammonia complex, the state of hybridization of is2009Werner's theory and Valence Bond Theory
Frequently Asked Questions
1.How many questions are available for Coordination Compounds?
This chapter includes 28 questions compiled from WBJEE papers spanning 2009 to 2026.
2.Are these questions only from WBJEE, or from other exams too?
These are WBJEE 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 WBJEE Chemistry?
Coordination Compounds has appeared in 15 of the 18 years of WBJEE papers covered here, with 28 questions across 15 papers - about 2 per paper it appears in.
4.What is the difficulty level of Coordination Compounds questions in WBJEE?
Of the 28 questions analysed for this chapter, 14% are easy, 71% moderate and 14% tough. 2026 had the most, with 4 questions.
5.Which topics in Coordination Compounds should I focus on?
These topics have carried the most weightage in Coordination Compounds:
- Werner's theory and Valence Bond Theory - 11 questions (39%)
- Terminology of coordination compounds - 7 questions (25%)
- Crystal Field Theory - 6 questions (21%)
- Crystal Field Theory has produced the most tough questions (2).
6.Is Coordination Compounds's weightage in WBJEE going up or down?
Across all 15 papers analysed, Coordination Compounds has averaged about 1.9 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 2.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.