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Coordination Compounds

Previous year questions with solutions · 2000 – 2026

101Questions
35Papers covered
8.89%Weightage 2026▲ 33.3% vs last year
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Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
20268248.89% ▲ 33.3% vs last year
20253136.67% ▲ 12.2% vs last year
20246235.94% ▲ 51.5% vs last year
20232123.92% ▼ 1% vs last year
20224223.96% ▼ 1% vs last year
20212124.00% ▲ 80% vs last year
20201112.22% same as last year
20191112.22% ▼ 75% vs last year
20184148.89% same as last year
20174148.89% ▲ 166.7% vs last year
2016321.53.33% ▼ 50% vs last year
20156236.67% ▲ 50% vs last year
20142124.44% ▼ 50.6% vs last year
20138248.99% ▲ 139.7% vs last year
2012321.53.75% ▼ 62% vs last year
20118249.88% ▲ 97.5% vs last year
20104225.00% ▲ 27.5% vs last year
20092123.92% same as last year
20082123.92% ▼ 2% vs last year
20072124.00% same as last year
20062124.00% same as last year
20052124.00% ▼ 72.6% vs last year
200471714.58% ▲ 138.2% vs last year
20033136.12% ▼ 23.5% vs last year
20024148.00% ▼ 18.4% vs last year
20015159.80% ▲ 66.7% vs last year
20003135.88%

101 questions · newest paper first · page 1 of 4

Ques. 1NEET (UG) 2026

Match List I with List II :

  1. A-I, B-III, C-IV, D-II
  2. A-III, B-IV, C-I, D-II
  3. A-III, B-I, C-IV, D-II
  4. A-IV, B-I, C-III, D-II
Ques. 2NEET (UG) 2026

Which one of the following is an ambidentate ligand?

  1. Oxalate
  2. Ethane-1,2-diamine
  3. Thiocyanate
  4. Ethylenediaminetetraacetate ion
Ques. 3RE-NEET (UG) 2026

The formula of tetraammineaquachloridocobalt(III) chloride is

  1. [Co(NH3)4(H2O)Cl]Cl2
  2. [Co(NH3)4Cl2] H2O
  3. [Co(NH3)4]Cl3 H2O
  4. [Co(NH3)4(H2O)Cl]Cl
Ques. 4RE-NEET (UG) 2026

Given below are two statements: (Given : oxH2 = HOOC - COOH) In light of the above statements, choose the most appropriate answer from the options given below:

  1. Statement I is incorrect but Statement II is correct
  2. Both Statement I and Statement II are correct
  3. Both Statement I and Statement II are incorrect
  4. Statement I is correct but Statement II is incorrect
Ques. 5RE-NEET (UG) 2026

The complex which has facial and meridional isomers is (Given : py = pyridine and en = H2N-CH2-CH2-NH2)

  1. [Ni(en)2(H2O)2]2+
  2. [Cr(py)3(Cl)3]
  3. [Cr(H2O)6]3+
  4. [Co(NH3)4(H2O)2]3+
Ques. 6RE-NEET (UG) 2026

A 1 : 3 electrolyte in an aqueous solution is

  1. [Co(NH3)3(NO2)3]
  2. [CoCl2(NH3)4]Cl
  3. [CoCl(NH3)5]Cl2
  4. [Co(NH3)6]Cl3
Ques. 7RE-NEET (UG) 2026

According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is

  1. Cl- > NH3 > H2O > CO
  2. CO > NH3 > H2O > Cl-
  3. CO > H2O > NH3 > Cl-
  4. Cl- > H2O > NH3 > CO
Ques. 8RE-NEET (UG) 2026

Among the species given below, the spin-only magnetic moment is highest for (Given: Atomic number of Ti = 22, Mn = 25, Fe = 26 and Co = 27)

  1. [Ti(H2O)6]3+
  2. [Mn(CN)6]3-
  3. [Fe(CN)6]3-
  4. [Co(NH3)6]3+
Ques. 9NEET (UG) 2025

Out of the following complex compounds, which of the compound will be having the minimum conductance solution?

  1. [Co(NH3)6]Cl3
  2. [Co(NH3)5Cl]Cl
  3. [Co(NH3)3Cl3]
  4. [Co(NH3)4Cl2]
Ques. 10NEET (UG) 2025

Which of the following are paramagnetic? Choose the correct answer from the options given below :

  1. A and D only
  2. A, D and E only
  3. A and C only
  4. B and E only
Ques. 11NEET (UG) 2025

The correct order of the wavelength of light absorbed by the following complexes is, A. [Co(NH3)6]3+ B. [Co(CN)6]3- C. [Cu(H2O)4]2+ D. [Ti(H2O)6]3+ Choose the correct answer from the options given below:

  1. C < D < A < B
  2. C < A < D < B
  3. B < D < A < C
  4. B < A < D < C
Ques. 12NEET (UG) 2024

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

  1. A-II, B-III, C-IV, D-I
  2. A-I, B-III, C-IV, D-II
  3. A-I, B-IV, C-III, D-II
  4. A-II, B-IV, C-III, D-I
Ques. 13NEET (UG) 2024

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 true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
Ques. 14NEET (UG) 2024

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 true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
Ques. 15RE-NEET (UG) 2024

Ethylene diaminetetraacetate ion is a/an:

  1. hexadentate ligand
  2. ambidentate ligand
  3. monodentate ligand
  4. bidentate ligand
Ques. 16RE-NEET (UG) 2024

Which of the following is not an ambidentate ligand?

  1. C2O42-
  2. SCN-
  3. NO2-
  4. CN-
Ques. 17RE-NEET (UG) 2024

[ Mn2(CO)10] and [Co2(CO)8] structures have Choose the correct answer from the options given below

  1. Only A, B, C
  2. Only B, C, D
  3. Only A, C, D
  4. Only A, B, D
Ques. 18NEET (UG) 2023

Homoleptic complex from the following complexes is:

  1. Diamminechloridonitrito-N-platinum(II)
  2. Pentaamminecarbonatocobalt(III) chloride
  3. Triamminetriaquachromium(III) chloride
  4. Potassium trioxalatoaluminate(III)
Ques. 19NEET (UG) 2023

Which complex compound is most stable?

  1. [Co(NH3)3(NO3)3]
  2. [CoCl2(en)2]NO3
  3. [Co(NH3)6]2(SO4)3
  4. [Co(NH3)4(H2O)Br](NO3)2
Ques. 20NEET (UG) 2022

The IUPAC name of the complex [Ag(H2O)2][Ag(CN)2] is:

  1. dicyanidosilver(II) diaquaargentate(II)
  2. diaquasilver(II) dicyanidoargentate(II)
  3. dicyanidosilver(I) diaquaargentate(I)
  4. diaquasilver(I) dicyanidoargentate(I)
Ques. 21NEET (UG) 2022

The order of energy absorbed which is responsible for the color of complexes (A) [Ni(H2O)2(en)2]2+ (B) [Ni(H2O)4(en)]2+ and (C) [Ni(en)3]2+ is

  1. (A) > (B) > (C)
  2. (C) > (B) > (A)
  3. (C) > (A) > (B)
  4. (B) > (A) > (C)
Ques. 22NEET (UG) 2022 (Phase 2)

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

  1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  2. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
  3. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
  4. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
Ques. 23NEET (UG) 2022 (Phase 2)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below.

  1. (A) is not correct but (R) is correct
  2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  4. (A) is correct but (R) is not correct
Ques. 24NEET (UG) 2021

Ethylene diaminetetraacetate (EDTA) ion is :

  1. Tridentate ligand with three "N" donor atoms
  2. Hexadentate ligand with four "O" and two "N" donor atoms
  3. Unidentate ligand
  4. Bidentate ligand with two "N" donor atoms
Ques. 25NEET (UG) 2021

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

  1. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  2. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
  3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
  4. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
Ques. 26NEET (UG) 2020

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?

  1. SCN- < F- < CN- < C2O42-
  2. F- < SCN- < C2O42- < CN-
  3. CN- < C2O42- < SCN- < F-
  4. SCN- < F- < C2O42- < CN-
Ques. 27NEET (UG) 2019

What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory?

  1. t2g4 eg2
  2. t2g6 eg0
  3. e3 t23
  4. e4 t22
Ques. 28NEET 2018

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

  1. (a)-(iv), (b)-(v), (c)-(ii), (d)-(i)
  2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  4. (a)-(iii), (b)-(v), (c)-(i), (d)-(ii)
Ques. 29NEET 2018

The type of isomerism shown by the complex [CoCl2(en)2] is

  1. geometrical isomerism
  2. coordination isomerism
  3. ionization isomerism
  4. linkage isomerism
Ques. 30NEET 2018

The geometry and magnetic behaviour of the complex [Ni(CO)4] are

  1. square planar geometry and diamagnetic
  2. tetrahedral geometry and diamagnetic
  3. square planar geometry and paramagnetic
  4. tetrahedral geometry and paramagnetic