Coordination Compounds JEE Main PYQs PDF, 2020–2026

Coordination Compounds has 248 questions in JEE Main papers from 2020 to 2026, about 35 per year across all shifts. The free PDF has 244 of them, each with its answer. The most asked topic is Crystal Field Theory (129 questions), followed by Isomerism in Coordination Compounds (37) and Ligands and Coordination Number (27).

Asked in JEE Main: 2482020–2026, all shifts
In this free PDF: 244with answers
Asked in 2026: 36Latest paper: 2026 Apr S2
Most asked topic: Crystal Field Theory129 Qs · 52% of the chapter
Difficulty mix: 20% easy · 76% medium · 4% hardof the questions in the PDF

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Source: official NTA JEE Main papers · Updated 25 Oct 2026

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2 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.

How often it's asked in JEE Main

Coordination Compounds had about 1.9 questions per shift in recent JEE Main papers (2024–26). It's one of the most asked Chemistry chapters. Most asked topic: Crystal Field Theory. About 36 questions in the 2026 papers.

It came up in almost every 2024–26 shift in our bank (about 57 shifts). Question types in 2020–2026: about 177 MCQs and about 71 numerical.

How many questions from Coordination Compounds in JEE Main, year by year

Year	Questions	Per shift	MCQ	Numerical
2026	36	1.9	26	10
2025	40	2.1	32	8
2024	34	1.7	29	5
2023	47	2.0	36	11
2022	29	1.3	11	18
2021	34	1.3	18	16
2020	28	1.8	25	3
2020–2026	248	1.7	177	71

Most asked Coordination Compounds topics, 2020–2026

Topic	Questions
Crystal Field Theory	129
Isomerism in Coordination Compounds	37
Ligands and Coordination Number	27
Valence Bond Theory	23
Werner's Theory and Terminology	19

Every topic, year by year, is in the topic-wise table further down.

Counted from PrepWiser's question bank of JEE Main papers, 2020–2026. Per shift = questions that year ÷ shifts in our bank. Updated 25 Oct 2026.

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Two free sheets, made from the past JEE Main questions on this chapter.

Revision notes14 pages, 29 ideas with the usual mistakes.Open the revision notes Formula sheet3 pages, all 27 formulas.Open the formula sheet

Coordination Compounds questions per year

Year	Asked	In PDF
2026	36	36
2025	40	38
2024	34	34
2023	47	47
2022	29	29
2021	34	32
2020	28	28

in the free PDF asked, not in the PDFThe PDF only has questions we can print in full with a checked answer, so it holds 244 of the 248 asked.

Topic-wise weightage by year

How many Coordination Compounds questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.

Topic	Asked	Share	2026	2025	2024	2023	2022	2021	2020
Crystal Field Theory	129	52%	25	22	17	23	16	12	14
Isomerism in Coordination Compounds	37	15%	4	7	3	6	2	7	8
Ligands and Coordination Number	27	11%	·	2	8	9	2	5	1
Valence Bond Theory	23	9%	7	5	1	2	3	3	2
Werner's Theory and Terminology	19	8%	·	4	2	4	4	4	1
Stability of Complexes	7	3%	·	·	·	2	2	3	·
IUPAC Nomenclature	6	2%	·	·	3	1	·	·	2
All topics	248	100%	36	40	34	47	29	34	28

Swipe the table sideways for older years.

Newest questions (2026)

The 12 newest of the 36 JEE Main 2026 Coordination Compounds questions in the free PDF, latest shift first.

JEE Main 2026 · 8 Apr · Shift 2 · Crystal Field Theory

Number of paramagnetic complexes among the following is $\_\_\_\_$ .

$\begin{array}{cc} & {{[{\mathrm{MnBr}}_{4}]}^{{2-}},{[{\mathrm{NiCl}}_{4}]}^{{2-}},{[{\mathrm{Ni}}({\mathrm{CN}})_{4}]}^{{2-}},[{\mathrm{Ni}}({\mathrm{CO}})_{4}],{[{\mathrm{CoF}}_{6}]}^{{3-}},{[{\mathrm{Fe}}({\mathrm{CN}})_{6}]}^{{4-}},{[{\mathrm{Mn}}({\mathrm{CN}})_{6}]}^{{3-}},{[{\mathrm{Ti}}({\mathrm{CN}})_{6}]}^{{3-}},} \\ & {{[{\mathrm{Cu}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{2+}},{[{\mathrm{Co}}{({\mathrm{C}}_{2}{\mathrm{O}}_{4})}_{3}]}^{{3-}}}\end{array}$
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JEE Main 2026 · 6 Apr · Shift 1 · Crystal Field Theory

$\text{ Match the LIST-I with LIST-II}$

List-I Electronic configuration of tetrahedral metal ion		$\begin{array}{c}\text{ List-II} \\ \text{ Crystal Field Stabilization} \\ \text{ Energy}(\Delta_{t})\end{array}$
A.	${\mathrm{d}}^{2}$	I.	-0.6
B.	${\mathrm{d}}^{4}$	II.	-0.8
C.	${\mathrm{d}}^{6}$	III.	-1.2
D.	${\mathrm{d}}^{8}$	IV.	-0.4

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JEE Main 2026 · 6 Apr · Shift 1 · Crystal Field Theory

Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex?

A. ${\mathrm{d}}_{{xy}}={\mathrm{d}}_{{xz}}>{\mathrm{d}}_{{{x^{2}}-{\mathrm{y}}^{2}}}$

B. ${\mathrm{d}}_{{xy}}={\mathrm{d}}_{{yz}}>{\mathrm{d}}_{{z^{2}}}$

C. ${\mathrm{d}}_{{x^{2}-y^{2}}}>{\mathrm{d}}_{{z^{2}}}>{\mathrm{d}}_{{xz}}$

D. ${\mathrm{d}}_{{{x^{2}}-y^{2}}}={\mathrm{d}}_{{z^{2}}}<{\mathrm{d}}_{{xz}}$

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JEE Main 2026 · 6 Apr · Shift 2 · Valence Bond Theory

An excess of ${\mathrm{AgNO}}_{3}$ is added to 100 mL of a 0.05 M solution of tetraaquadichloridochromium (III) chloride. The number of moles of AgCl precipitated will be $\_\_\_\_$ $\times {10}^{{-3}}$ .

(Nearest integer)
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JEE Main 2026 · 6 Apr · Shift 2 · Valence Bond Theory

Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds?

A. ${[{\mathrm{NiCl}}_{4}]}^{{2-}}-{\mathrm{sp}}^{3}$ , tetrahedral, paramagnetic

B. ${[{\mathrm{Ni}}{({\mathrm{NH}}_{3})}_{6}]}^{{2+}}-{\mathrm{sp}}^{3}{\ \mathrm{d}}^{2}$ , octahedral, paramagnetic

C. $[{\mathrm{Ni}}({\mathrm{CO}})_{4}]-{\mathrm{sp}}^{3}$ , tetrahedral, paramagnetic

D. ${[{\mathrm{Ni}}({\mathrm{CN}})_{4}]}^{{2-}}-{\mathrm{dsp}}^{2}$ , square planar, diamagnetic

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JEE Main 2026 · 5 Apr · Shift 2 · Valence Bond Theory

Identify the correct statements from the following

A. ${[{\mathrm{Fe}}{({\mathrm{C}}_{2}{\mathrm{O}}_{4})}_{3}]}^{{3-}}$ is the most stable complex among ${[{\mathrm{Fe}}({\mathrm{OH}})_{6}]}^{{3-}},{[{\mathrm{Fe}}{({\mathrm{C}}_{2}{\mathrm{O}}_{4})}_{3}]}^{{3-}}$ and ${[{\mathrm{Fe}}({\mathrm{SCN}})_{6}]}^{{3-}}$

B. The stability of ${[{\mathrm{Cu}}{({\mathrm{NH}}_{3})}_{4}]}^{{2+}}$ is greater than that of ${[{\mathrm{Cu}}({\mathrm{en}})_{2}]}^{{2+}}$

C. The hybridization of Fe in ${\mathrm{K}}_{4}[{\mathrm{Fe}}({\mathrm{CN}})_{6}]$ is ${\mathrm{d}}^{2}{\mathrm{sp}}^{3}$

D. ${[{\mathrm{Fe}}{({\mathrm{NO}}_{2})}_{3}{\mathrm{Cl}}_{3}]}^{{3-}}$ exhibits linkage isomerism

E. ${\mathrm{NO}}_{2}^{{-}}$ and ${\mathrm{SCN}}^{{-}}$ ligands are NOT ambidentate ligands

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JEE Main 2026 · 5 Apr · Shift 2 · Crystal Field Theory

Given below are two statements :

Statement I : Presence of large number of unpaired electrons in transition metal atoms results in higher enthalpies of their atomisation.

Statement II : $\;{\mathrm{d}}_{{xy}}={\mathrm{d}}_{{xz}}={\mathrm{d}}_{{yz}}<{\mathrm{d}}_{{x^{2}-y^{2}}}={\mathrm{d}}_{{z^{2}}}$ and ${\mathrm{d}}_{{x^{2}-y^{2}}}={\mathrm{d}}_{{z^{2}}}<{\mathrm{d}}_{{xy}}={\mathrm{d}}_{{xz}}={\mathrm{d}}_{{yz}}$ are the d-orbital splittings in ${[{\mathrm{Fe}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{3+}}$ and ${[{\mathrm{Ni}}({\mathrm{Cl}})_{4}]}^{{2-}}$ complex ions respectively.

In the light of the above statements, choose the correct answer from the options given below :
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JEE Main 2026 · 5 Apr · Shift 2 · Crystal Field Theory

The total number of unpaired electrons present in the $d^{3},d^{4}$ (low spin) $d^{5}$ (high spin), ${\mathrm{d}}^{6}$ (high spin) and ${\mathrm{d}}^{7}$ (low spin) octahedral complex systems is $\_\_\_\_$ .
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JEE Main 2026 · 5 Apr · Shift 1 · Valence Bond Theory

The correct statements about metal carbonyls are

A. The metal-carbon bonds in metal carbonyls possess both $\sigma$ and $\pi$ character.

B. Due to synergic bonding interactions between metal and CO ligand, the metal-carbon bond becomes weak.

C. The metal-carbon $\sigma$ bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of metal.

D. The metal-carbon $\pi$ bond is formed by the donation of electrons from filled d-orbital of metal into vacant $\pi^{\ast}$ orbital of CO .

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JEE Main 2026 · 5 Apr · Shift 1 · Crystal Field Theory

Given below are two statements:

Statement I: Each electron in ${\mathrm{e}}_{{{\mathrm{g}}}}$ orbitals destabilizes the orbitals by $+0.6\Delta_{{{\mathrm{o}}}}$ and each electron in the $t_{{2g}}$ orbitals stabilizes the orbitals by $-0.4\Delta_{0}$ in an octahedral field on the basis of crystal field theory.

Statement II: All the d - orbitals of the transition metals have the same energy in their free atomic state but when a complex is formed the ligands destroy the degeneracy of these orbitals on the basis of crystal field theory.

In the light of the above statements, choose the correct answer from the options given below

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JEE Main 2026 · 4 Apr · Shift 1 · Crystal Field Theory

$\text{ Match the LIST-I with LIST-II}$

List-I Complex ion		List-II Calculated spin only magnetic moment (BM)
A.	${[{\mathrm{Cr}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{2+}}$	I.	3.87
B.	${[{\mathrm{Co}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{2+}}$	II.	5.92
C.	${[{\mathrm{Cu}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{2+}}$	III.	4.90
D.	${[{\mathrm{Mn}}{({\mathrm{H}}_{2}{\mathrm{O}})}_{6}]}^{{2+}}$	IV.	1.73

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JEE Main 2026 · 4 Apr · Shift 2 · Crystal Field Theory

Consider the metal complexes ${[{\mathrm{Ni}}({\mathrm{en}})_{3}]}^{{2+}}({\mathrm{A}}),{[{\mathrm{NiCl}}_{4}]}^{{2-}}({\mathrm{B}})$ and ${[{\mathrm{Ni}}{({\mathrm{NH}}_{3})}_{6}]}^{{2+}}({\mathrm{C}})$ . Choose the CORRECT option by considering the number of unpaired electrons present in (A), (B) and (C) respectively and the order of frequency of absorption.
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Sample questions from recent papers

JEE Main 2026 · 2 Apr · Shift 2 · Isomerism in Coordination Compounds

Which of the following complexes will show coordination isomerism?

A. $[{\mathrm{Ag}(\mathrm{NH}}_{3})_{2}][{\mathrm{Ag}(\mathrm{CN})}_{2}]$

B. $[{\mathrm{Co}(\mathrm{NH}}_{3})_{6}][{\mathrm{Cr}(\mathrm{CN})}_{6}]$

C. $[{\mathrm{Co}(\mathrm{NH}}_{3})_{6}][{\mathrm{Co}(\mathrm{CN})}_{6}]$

D. $[{\mathrm{Fe}(\mathrm{NH}}_{3})_{6}][{\mathrm{Co}(\mathrm{CN})}_{6}]$

E. $[{\mathrm{Co}(\mathrm{NH}}_{3})_{6}][{\mathrm{Fe}(\mathrm{CN})}_{6}]$

Choose the correct answer from the options given below:

(A)
B, C and D Only
(B)
B, D and E Only
(C)
A, C and D Only
(D)
C, D and E Only

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Answer: (B)

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JEE Main 2025 · 7 Apr · Shift 2 · Werner's Theory and Terminology

'X' is the number of acidic oxides among VO₂, V₂O₃, CrO₃, V₂O₅ and Mn₂O₇. The primary valency of cobalt in
[Co(H₂NCH₂CH₂NH₂)₃]₂(SO₄)₃ is Y. The value of X + Y is _________.

(A)
3
(B)
4
(C)
2
(D)
5

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Answer: (D)

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JEE Main 2025 · 29 Jan · Shift 2 · Ligands and Coordination Number

Identify the homoleptic complexes with odd number of $d$ electrons in the central metal :

(A) $\left[\mathrm{FeO}_4\right]^{2-}$

(B) $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$

(D) $\left[\mathrm{CoCl}_4\right]^{2-}$

(E) $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{~F}_3\right]$

Choose the correct answer from the options given below :

(A)
(C) and (E) only
(B)
(A), (B) and (D) only
(C)
(B) and (D) only
(D)
(A), (C) and (E) only

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Answer: (C)

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JEE Main 2024 · 6 Apr · Shift 2 · IUPAC Nomenclature

The correct IUPAC name of $[\mathrm{PtBr}_2(\mathrm{PMe}_3)_2]$ is :

(A)bis(trimethylphosphine)dibromoplatinum(II)
(B)dibromodi(trimethylphosphine)platinum(II)
(C)dibromobis(trimethylphosphine)platinum(II)
(D)bis[bromo(trimethylphosphine)]platinum(II)

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Answer: (C)

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JEE Main 2023 · 11 Apr · Shift 1 · Stability of Complexes

The complex that dissolves in water is :

(A) $\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$
(B) $\left(\mathrm{NH}_{4}\right)_{3}\left[\mathrm{As}\left(\mathrm{Mo}_{3} \mathrm{O}_{10}\right)_{4}\right]$
(C) $\mathrm{K}_{3}\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{6}\right]$
(D) $\left[\mathrm{Fe}_{3}(\mathrm{OH})_{2}(\mathrm{OAc})_{6}\right] \mathrm{Cl}$

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Answer: (D)

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The free PDF above has all 244 questions grouped by topic, with an answer key.

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Frequently asked

How many questions come from Coordination Compounds in JEE Main?

248 questions from 2020 to 2026, about 35 per year. In 2026 it had 36. The free PDF has 244 of them.

Which Coordination Compounds topics are most important for JEE Main?

By past papers: Crystal Field Theory (52%), Isomerism in Coordination Compounds (15%) and Ligands and Coordination Number (11%) of all Coordination Compounds questions.

Is the Coordination Compounds PYQ PDF free?

Yes. The PDF and its answer key are free, and you can practise the questions online with no login, with step-by-step solutions where available.

Prefer to solve online? Practise Coordination Compounds online with step-by-step solutions where available, or work through JEE Main papers shift by shift.

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JEE Main PYQs by year: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020

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Coordination Compounds JEE Main PYQs PDF, 2020–2026

How often it's asked in JEE Main

How many questions from Coordination Compounds in JEE Main, year by year

Most asked Coordination Compounds topics, 2020–2026

Revise Coordination Compounds before you practise

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Coordination Compounds questions per year

Topic-wise weightage by year

Newest questions (2026)

Sample questions from recent papers

Practise these online, free, no login

Frequently asked

How many questions come from Coordination Compounds in JEE Main?

Which Coordination Compounds topics are most important for JEE Main?

Is the Coordination Compounds PYQ PDF free?

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