Coordination Compounds CBSE Class 12 PYQ Chapter Wise

Explore: All CBSE Class 12 chapters · CBSE Class 12 Chemistry PYQs · CBSE Class 12 hub · Syllabus & pattern · Class 12 2026

Answer first

Coordination Compounds PYQs (previous year questions) for CBSE Class 12: Coordination Compounds (Chemistry) had 22 questions across the 50 official CBSE Class 12 papers we tagged (2016–2026), and appeared in 10 of them. Asked in 10 of 10 years. The concepts asked in the most papers: Crystal Field Theory, Coordination Nomenclature, Coordination Number.

Year-wise question count

Asked in 10 of 10 years.

Most-asked concepts

Sorted by the number of papers a concept appeared in.

How to practise Coordination Compounds PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year’s Coordination Compounds questions from the official PDF against the clock, then check the answer listed below.
3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
4. Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.

Questions by year

Each line gives the question number and paper, type, concept, our one-line summary, with a link to the official PDF.

CBSE Class 122026

• Q.7 (Chemistry (56/1/1)) · MCQ · Coordination Number: Secondary valency of Co in a nitro pentaammine complex PDF
• Q.19 (Chemistry (56/1/1)) · Very short answer · Coordination Nomenclature: IUPAC names of a silver complex salt and a ferric oxalato complex PDF
• Q.30 (Chemistry (56/1/1)) · Case-based · Crystal Field Theory: Passage on CFT: raised orbitals, Co configurations, Ni complex magnetism PDF

CBSE Class 122025

• Q.5 (Chemistry (56/1/1)) · MCQ · Coordination Nomenclature: Correct IUPAC name of a Pt diammine dichlorido cation PDF
• Q.13 (Chemistry (56/1/1)) · Assertion-Reason · Types of Ligands: Homoleptic complexes of Cr and Fe with water ligands PDF
• Q.32 (Chemistry (56/1/1)) · Long answer · Crystal Field Theory: Low-spin tetrahedral, Co2+ oxidation, isomerism, colour, naming PDF

CBSE Class 122024

• Q.24 (Chemistry (56/1/1)) · Short answer · Isomerism and Conductivity: Zincate formula, conductivity order of Cr complexes, isomerism types PDF
• Q.30 (Chemistry (56/1/1)) · Case-based · Crystal Field Theory: Passage on VBT/CFT: splitting energy, Ti complex colour, magnetism PDF

CBSE Class 122023

• Q.8 (Chemistry (56/1/1)) · MCQ · Ionisation Isomerism: Type of isomerism between two cobalt sulphate/bromide complexes PDF
• Q.18 (Chemistry (56/1/1)) · Assertion-Reason · Crystal Field Theory: Rarity of low-spin tetrahedral complexes PDF
• Q.32 (Chemistry (56/1/1)) · Case-based · Werner Theory: Passage on valencies: Pt complex formula, secondary valency, naming PDF

CBSE Class 122022

• Q.5 (Chemistry (56/1/1)) · Short answer · Crystal Field Theory: d4 configuration for weak field; [Ni(CN)4]2- bonding; formula from name PDF

CBSE Class 122020

• Q.18 (Chemistry (56/1/1)) · Assertion-Reason · Linkage Isomerism: Linkage isomerism and ambidentate ligands PDF
• Q.25 (Chemistry (56/1/1)) · Short answer · Coordination Nomenclature: Formulae of a zincate and a platinum ammine complex PDF

CBSE Class 122019

• Q.10 (Chemistry (56/1/1)) · Short answer · Isomerism and Nomenclature: IUPAC name and geometrical isomers of [Pt(en)2Cl2] PDF
• Q.11 (Chemistry (56/1/1)) · Short answer · Valence Bond Theory: Compare [CoF6]3- and [Co(en)3]3+ for magnetism, stability, spin PDF

CBSE Class 122018

• Q.3 (Chemistry (56/1)) · Very short answer · Coordination Number: Coordination number and oxidation state of Pt in [Pt(en)2Cl2] PDF
• Q.22 (Chemistry (56/1)) · Short answer · Isomerism and Bonding: Formula of a cyanoferrate, isomerism type, hybridisation of [CoF6]3- PDF

CBSE Class 122017

• Q.10 (Chemistry (56/1)) · Short answer · Coordination Nomenclature: Formulae of two complexes from their IUPAC names PDF
• Q.13 (Chemistry (56/1)) · Short answer · Isomerism and Magnetism: Isomerism in Co thiocyanate complex, Ni complex magnetism, low-spin tetrahedral PDF

CBSE Class 122016

• Q.8 (Chemistry (56/1/N)) · Short answer · Werner Theory: Formula and IUPAC name of NiCl2.6H2O complex from AgCl precipitate data PDF
• Q.22 (Chemistry (56/1/N)) · Short answer · Valence Bond Theory: Hybridisation and magnetism of ferrocyanide; optically active Co(en)2Cl2 isomer PDF

Other Chemistry chapters

• The Solid State PYQs
• Solutions PYQs
• Electrochemistry PYQs
• Chemical Kinetics PYQs
• Surface Chemistry PYQs
• General Principles of Isolation of Elements PYQs
• The p-Block Elements PYQs
• The d- and f-Block Elements PYQs
• Haloalkanes and Haloarenes PYQs
• Alcohols, Phenols and Ethers PYQs
• Aldehydes, Ketones and Carboxylic Acids PYQs
• Amines PYQs
• Biomolecules PYQs
• Polymers PYQs
• Chemistry in Everyday Life PYQs

FAQ

How many Coordination Compounds questions come in CBSE Class 12?

In the official papers we tagged: 3 in 2026, 3 in 2025, 2 in 2024, 3 in 2023, 1 in 2022, 2 in 2020, 2 in 2019, 2 in 2018, 2 in 2017 and 2 in 2016. That is 22 questions in all, about 8% of Chemistry.

Which Coordination Compounds topics repeat in CBSE Class 12?

Asked in the most papers: Crystal Field Theory, Coordination Nomenclature, Coordination Number. The concept table lists every one with its count.

Are these official CBSE Class 12 questions?

Yes. Every question is from an official CBSE Class 12 paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.