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Class 12 • High Yield

JEE Advanced Coordination Compounds & Qualitative Inorganic Analysis Previous Year Questions

~3.5 Qs / Year (Paper 1 & 2)•10.3% Historical Weightage
← Practice JEE Main Foundational PYQs for this chapter
High-Yield Recurring Advanced Concepts
Crystal Field Splitting ($\Delta_o, \Delta_t$), Jahn-Teller Distortion, and Spectrochemical Series
Isomerism: Geometrical (cis/trans, fac/mer), Optical, and Linkage Isomers ($NO_2^-, SCN^-$)
Qualitative Salt Analysis: Identification of Cations ($Group\ I - VI$) & Precipitate Solubilities
Bonding in Metal Carbonyls: $\sigma$-donation and $\pi$-backbonding synergism

Chapter PYQs (40 Questions)

Live Partial Marking Mode
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2025 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2025 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2025 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2025 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2024 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2024 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2024 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2024 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2023 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2023 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2023 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2023 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2022 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2022 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2022 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2022 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2021 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2021 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2021 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2021 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2020 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2020 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2020 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2020 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2019 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2019 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2019 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2019 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2018 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2018 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2018 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2018 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2017 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2017 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2017 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2017 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 1Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2016 Paper 1 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 1Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2016 Paper 1 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).
Q18Paper 2Chemistry (Inorganic)One or More Correct (Partial Marking)Medium
Coordination Compounds & Qualitative Inorganic Analysis
Scoring Scheme: +4 Full Marks • -2 Negative Marks • Partial Marking Enabled
[JEE Advanced 2016 Paper 2 Chemistry Q18] Among the following octahedral coordination complexes, which one is diamagnetic (n=0n=0 unpaired electrons) with the highest crystal field stabilization energy (CFSE) magnitude?
Select one or more options, then click "Submit Choices":
Q29Paper 2Chemistry (Inorganic)Numerical Value TypeMedium
Coordination Compounds
Scoring Scheme: +4 Full Marks • 0 Negative Marks
[JEE Advanced 2016 Paper 2 Chemistry Q29] Calculate the spin-only magnetic moment μs\mu_s (in Bohr Magnetons, BM) for the high-spin complex [Fe(H2O)6]2+[Fe(H_2O)_6]^{2+}. (Given: 24≈4.90\sqrt{24} \approx 4.90).