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Coordination Compounds

Previous year questions with solutions · 2024 – 2026

106Questions
56Papers covered
6.95%Weightage 2026▼ 10.8% vs last year
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
202633191.76.95% ▼ 10.8% vs last year
202537191.97.79% ▲ 30% vs last year
202436211.75.99%

23 questions · newest paper first

Ques. 1JEE Main 2026, 6 April (Evening Shift)

Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ? Choose the correct answer from the options given below :

  1. A, B, C and D
  2. B, C and D only
  3. A, C and D only
  4. A, B and D only
Ques. 2JEE Main 2026, 28 January (Morning Shift)

The correct statement among the following is:

  1. [Ni(CN)4]2- and [NiCl4]2- are diamagnetic and Ni(CO)4 is paramagnetic.
  2. Ni(CO)4 is diamagnetic and [NiCl4]2- and [Ni(CN)4]2- are paramagnetic.
  3. Ni(CO)4 and [NiCl4]2- are diamagnetic and [Ni(CN)4]2- is paramagnetic.
  4. Ni(CO)4 and [Ni(CN)4]2- are diamagnetic and [NiCl4]2- is paramagnetic.
Ques. 3JEE Main 2026, 24 January (Morning Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below

  1. Both Statement I and Statement II are false
  2. Statement I is true but Statement II is false
  3. Both Statement I and Statement II are true
  4. Statement I is false but Statement II is true
Ques. 4JEE Main 2026, 24 January (Morning Shift)

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below

  1. Statement I is true but Statement II is false
  2. Both Statement I and Statement II are false
  3. Statement I is false but Statement II is true
  4. Both Statement I and Statement II are true
Ques. 5JEE Main 2026, 23 January (Evening Shift)

Identify the CORRECT set of details from the following : Choose the correct answer from the options given below :

  1. C & D Only
  2. A, C & E Only
  3. A, B, C, D & E
  4. A, B & D Only
Ques. 6JEE Main 2026, 23 January (Evening Shift)

Total number of unpaired electrons present in the central metal atoms/ions of [Ni(CO)4], [NiCl4]2-, [PtCl2(NH3)2], [Ni(CN)4]2- and [Pt(CN)4]2- is .

Ques. 7JEE Main 2026, 21 January (Morning Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are false
  3. Both Statement I and Statement II are true
  4. Statement I is true but Statement II is false
Ques. 8JEE Main 2025, 8 April (Evening Shift)

Match the LIST-I with LIST-II Choose the correct answer from the options given below:

  1. A-I, B-II, C-III, D-IV
  2. A-IV, B-I, C-III, D-II
  3. A-III, B-II, C-I, D-IV
  4. A-III, B-IV, C-II, D-I
Ques. 9JEE Main 2025, 8 April (Evening Shift)

The number of species from the following that are involved in sp3d2 hybridization is : [Co(NH3)6]3+, SF6, [CrF6]3-, [CoF6]3-, [Mn(CN)6]3-, and [MnCl6]3-

  1. 4
  2. 3
  3. 5
  4. 6
Ques. 10JEE Main 2025, 7 April (Morning Shift)

The number of paramagnetic complexes among [FeF6]3-, [Fe(CN)6]3-, [Mn(CN)6]3-, [Co(C2O4)3]3-, [MnCl6]3-, and [CoF6]3-, which involve d2sp3 hybridization is .

Ques. 11JEE Main 2025, 7 April (Evening Shift)

The number of paramagnetic metal complex species among [Co(NH3)6]3+, [Co(C2O4)3]3-, [MnCl6]3-, [Mn(CN)6]3-, [CoF6]3-, [Fe(CN)6]3- and [FeF6]3- with same number of unpaired electrons is .

Ques. 12JEE Main 2025, 4 April (Evening Shift)

The correct order of [FeF6]3-, [CoF6]3-, [Ni(CO)4] and [Ni(CN)4]2- complex species based on the number of unpaired electrons present is:

  1. [CoF6]3- > [FeF6]3- > [Ni(CO)4] > [Ni(CN)4]2-
  2. [FeF6]3- > [CoF6]3- > [Ni(CN)4]2- > [Ni(CO)4]
  3. [FeF6]3- > [CoF6]3- > [Ni(CN)4]2- = [Ni(CO)4]
  4. [Ni(CN)4]2- > [FeF6]3- > [CoF6]3- > [Ni(CO)4]
Ques. 13JEE Main 2025, 3 April (Evening Shift)

Identify the diamagnetic octahedral complex ions from below ; Choose the correct answer from the options given below:

  1. B and C Only
  2. A and C Only
  3. B and D Only
  4. A and D Only
Ques. 14JEE Main 2025, 2 April (Evening Shift)

The type of hybridization and the magnetic property of [MnCl6]3- are,

  1. sp3d2, paramagnetic with four unpaired electrons.
  2. d2sp3, paramagnetic with four unpaired electrons.
  3. sp3d2, paramagnetic with two unpaired electrons.
  4. d2sp3, paramagnetic with two unpaired electrons.
Ques. 15JEE Main 2025, 29 January (Morning Shift)

Match List - I with List - II. Choose the correct answer from the options given below :

  1. (A)-(III), (B)-(I), (C)-(I), (D)-(IV)
  2. (A)-(III), (B)-(II), (C)-(III), (D)-(IV)
  3. (A)-(IV), (B)-(II), (C)-(I), (D)-(III)
  4. (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
Ques. 16JEE Main 2025, 28 January (Evening Shift)

Match List - I with List - II. Choose the correct answer from the options given below:

  1. (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
  2. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
  3. (A)-(I), (B)-(IV), (C)-(III), (D)-(II)
  4. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
Ques. 17JEE Main 2025, 22 January (Morning Shift)

From the magnetic behaviour of [NiCl4]2- (paramagnetic) and [Ni(CO)4] (diamagnetic), choose the correct geometry and oxidation state.

  1. [NiCl4]2- : Ni(0), tetrahedral [Ni(CO)4] : Ni(0), square planar
  2. [NiCl4]2- : NiII, tetrahedral [Ni(CO)4] : Ni(0), tetrahedral
  3. [NiCl4]2- : NiII, tetrahedral [Ni(CO)4] : NiII, square planar
  4. [NiCl4]2- : NiII, square planar [Ni(CO)4] : Ni(0), square planar
Ques. 18JEE Main 2024, 9 April (Evening Shift)

Match List I with List II Choose the correct answer from the options given below:

  1. A-III, B-II, C-IV, D-I
  2. A-III, B-I, C-II, D-IV
  3. A-I, B-III, C-II, D-IV
  4. A-III, B-I, C-IV, D-II
Ques. 19JEE Main 2024, 1 February (Evening Shift)

[Co(NH3)6]3+ and [CoF6]3- are respectively known as :

  1. Inner orbital Complex, Spin paired Complex
  2. Spin paired Complex, Spin free Complex
  3. Spin free Complex, Spin paired Complex
  4. Outer orbital Complex, Inner orbital Complex
Ques. 20JEE Main 2024, 31 January (Morning Shift)

The correct statements from following are: Choose the correct answer from the options given below:

  1. B, C only
  2. B, D only
  3. A, C only
  4. A, D only
Ques. 21JEE Main 2024, 31 January (Evening Shift)

Select the option with correct property -

  1. [Ni(CO)4] and [NiCl4]2- both Paramagnetic
  2. [Ni(CO)4] and [NiCl4]2- both Diamagnetic
  3. [NiCl4]2- Diamagnetic, [Ni(CO)4] Paramagnetic
  4. [Ni(CO)4] Diamagnetic, [NiCl4]2- Paramagnetic
Ques. 22JEE Main 2024, 27 January (Evening Shift)

Identify from the following species in which d2sp3 hybridization is shown by central atom :

  1. [Co(NH3)6]3+
  2. SF6
  3. [PtCl4]2-
  4. BrF5
Ques. 23JEE Main 2024, 27 January (Evening Shift)

The Spin only magnetic moment value of square planar complex [Pt(NH3)2Cl(NH2CH3)]Cl is B.M. (Nearest integer) (Given atomic number for Pt = 78)