Coordination Compounds PYQs - Last 10 Years
JEE Main / Chemistry / Inorganic Chemistry / 313 recent questions
ChemistryInorganic Chemistry2017-2026
Practice 313 JEE Main Chemistry questions from Coordination Compounds. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 10 Years Coordination Compounds Questions
Showing 50 of 313 filtered questions.
1Coordination Compounds
The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and \(\mathrm{M}\) is metal) involves \(\mathrm{sp}^3\) hybridization. The number of geometrical isomers exhibited by the complex is :
MCQ+4 / -12024
2Coordination Compounds
The number of complexes from the following with no electrons in the \(t_2\) orbital is ______. $$\mathrm{TiCl}_4,\left[\mathrm{MnO}_4\right]^{-},\left[\mathrm{FeO}_4\right]^{2-},\left[\mathrm{FeCl}_4\right]^{-},\left[\mathrm{CoCl}_4\right]^...
MCQ+4 / -12024
3Coordination Compounds
The correct sequence of ligands in the order of decreasing field strength is :
MCQ+4 / -12024
4Coordination Compounds
Number of complexes from the following with even number of unpaired "\(\mathrm{d}\)" electrons is ________ $$[\mathrm{V}(\mathrm{H}_2 \mathrm{O})_6]^{3+},[\mathrm{Cr}(\mathrm{H}_2 \mathrm{O})_6]^{2+},[\mathrm{Fe}(\mathrm{H}_2 \mathrm{O})_6]...
MCQ+4 / -12024
5Coordination Compounds
If an iron (III) complex with the formula \(\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_x(\mathrm{CN})_y\right]^-\) has no electron in its \(e_g\) orbital, then the value of \(x+y\) is
MCQ+4 / -12024
6Coordination Compounds
A first row transition metal in its +2 oxidation state has a spin-only magnetic moment value of \(3.86 \mathrm{~BM}\). The atomic number of the metal is
MCQ+4 / -12024
7Coordination Compounds
The number of unpaired d-electrons in \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) is ________.
MCQ+4 / -12024
8Coordination Compounds
The 'Spin only' Magnetic moment for \(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right]^{2+}\) is _________ \(\times 10^{-1} \mathrm{~BM}\). (given \(=\) Atomic number of \(\mathrm{Ni}: 28\))
INTEGER+4 / -12024
9Coordination Compounds
The correct statements from following are:
A. The strength of anionic ligands can be explained by crystal field theory.
B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.
C. Th...
A. The strength of anionic ligands can be explained by crystal field theory.
B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.
C. Th...
MCQ+4 / -12024
10Coordination Compounds
Match List I with List II
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MCQ+4 / -12024
11Coordination Compounds
Select the option with correct property -
MCQ+4 / -12024
12Coordination Compounds
Choose the correct statements from the following :
(A) Ethane-1, 2-diamine is a chelating ligand.
(B) Metallic aluminium is produced by electrolysis of aluminium oxide in presence of cryolite.
(C) Cyanide ion is used as ligand for leaching ...
(A) Ethane-1, 2-diamine is a chelating ligand.
(B) Metallic aluminium is produced by electrolysis of aluminium oxide in presence of cryolite.
(C) Cyanide ion is used as ligand for leaching ...
MCQ+4 / -12024
13Coordination Compounds
Number of complexes which show optical isomerism among the following is ________.
$$\text { cis- }\left[\mathrm{Cr}(\mathrm{ox})_2 \mathrm{Cl}_2\right]^{3-},\left[\mathrm{Co}(\text {en})_3\right]^{3+}, \text { cis- }\left[\mathrm{Pt}(\text ...
$$\text { cis- }\left[\mathrm{Cr}(\mathrm{ox})_2 \mathrm{Cl}_2\right]^{3-},\left[\mathrm{Co}(\text {en})_3\right]^{3+}, \text { cis- }\left[\mathrm{Pt}(\text ...
INTEGER+4 / -12024
14Coordination Compounds
The coordination geometry around the manganese in decacarbonyldimanganese \((0)\) is
MCQ+4 / -12024
15Coordination Compounds
In which one of the following metal carbonyls, \(\mathrm{CO}\) forms a bridge between metal atoms?
MCQ+4 / -12024
16Coordination Compounds
Match List I with List II
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MCQ+4 / -12024
17Coordination Compounds
A reagent which gives brilliant red precipitate with Nickel ions in basic medium is
MCQ+4 / -12024
18Coordination Compounds
Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :
MCQ+4 / -12024
19Coordination Compounds
Consider the following complex ions
$$\begin{aligned}
& \mathrm{P}=\left[\mathrm{FeF}_6\right]^{3-} \\
& \mathrm{Q}=\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \\
& \mathrm{R}=\left[\mathrm{Fe}\left(\mathrm{H}_2 \math...
$$\begin{aligned}
& \mathrm{P}=\left[\mathrm{FeF}_6\right]^{3-} \\
& \mathrm{Q}=\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \\
& \mathrm{R}=\left[\mathrm{Fe}\left(\mathrm{H}_2 \math...
MCQ+4 / -12024
20Coordination Compounds
The Spin only magnetic moment value of square planar complex \(\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}\left(\mathrm{NH}_2 \mathrm{CH}_3\right)\right] \mathrm{Cl}\) is _________ B.M. (Nearest integer)
(Given atomic number f...
(Given atomic number f...
INTEGER+4 / -12024
21Coordination Compounds
Identify from the following species in which \(\mathrm{d}^2 \mathrm{sp}^3\) hybridization is shown by central atom :
MCQ+4 / -12024
22Coordination Compounds
Identity the incorrect pair from the following :
MCQ+4 / -12024
23Coordination Compounds
Given below are two statements :
Statement (I) : A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.
Statement (II) : A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colour...
Statement (I) : A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.
Statement (II) : A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colour...
MCQ+4 / -12024
24Coordination Compounds
Which of the following complex is homoleptic?
MCQ+4 / -12024
25Coordination Compounds
Which of the following compounds show colour due to d-d transition?
MCQ+4 / -12024
26Coordination Compounds
Given below are two statements :
Statement (I) : Dimethyl glyoxime forms a six-membered covalent chelate when treated with $\mathrm{NiCl}_2$ solution in presence of $\mathrm{NH}_4 \mathrm{OH}$.
Statement (II) : Prussian blue precipitate co...
Statement (I) : Dimethyl glyoxime forms a six-membered covalent chelate when treated with $\mathrm{NiCl}_2$ solution in presence of $\mathrm{NH}_4 \mathrm{OH}$.
Statement (II) : Prussian blue precipitate co...
MCQ+4 / -12024
27Coordination Compounds
$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ and $\left[\mathrm{CoF}_6\right]^{3-}$ are respectively known as :
MCQ+4 / -12024
28Coordination Compounds
The correct order of spin only magnetic moments for the following complex ions is
MCQ+4 / -12023
29Coordination Compounds
Which of the following complex is octahedral, diamagnetic and the most stable?
MCQ+4 / -12023
30Coordination Compounds
The observed magnetic moment of the complex \(\left.\left[\operatorname{Mn}(\underline{N} C S)_{6}\right)\right]^{x^{-}}\) is \(6.06 ~\mathrm{BM}\). The numerical value of \(x\) is __________.
INTEGER+4 / -12023
31Coordination Compounds
Match List I with List II
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MCQ+4 / -12023
32Coordination Compounds
Number of ambidentate ligands in a representative metal complex \(\left[\mathrm{M}(\mathrm{en})(\mathrm{SCN})_{4}\right]\) is ___________.
[en = ethylenediamine]
[en = ethylenediamine]
INTEGER+4 / -12023
33Coordination Compounds
Given below are two statements, one is labelled as Assertion \(\mathbf{A}\) and the other is labelled as Reason \(\mathbf{R}\).
Assertion A: The spin only magnetic moment value for \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) is $$1.7...
Assertion A: The spin only magnetic moment value for \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) is $$1.7...
MCQ+4 / -12023
34Coordination Compounds
The IUPAC name of \(\mathrm{K}_{3}\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]\) is:-
MCQ+4 / -12023
35Coordination Compounds
Cobalt chloride when dissolved in water forms pink colored complex \(\underline{\mathrm{X}}\) which has
octahedral geometry. This solution on treating with conc \(\mathrm{HCl}\) forms deep blue complex, \(\underline{\mathrm{Y}}\) which has ...
octahedral geometry. This solution on treating with conc \(\mathrm{HCl}\) forms deep blue complex, \(\underline{\mathrm{Y}}\) which has ...
MCQ+4 / -12023
36Coordination Compounds
If the CFSE of $\left[\mathrm{Ti}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$ is $-96.0 \mathrm{~kJ} / \mathrm{mol}$, this complex will absorb maximum at wavelength ___________ $\mathrm{nm}$. (nearest integer)
Assume Planck's co...
Assume Planck's co...
INTEGER+4 / -12023
37Coordination Compounds
Which of the following is correct order of ligand field strength?
MCQ+4 / -12023
38Coordination Compounds
To inhibit the growth of tumours, identify the compounds used from the following :
A. EDTA
B. Coordination Compounds of Pt
C. D - Penicillamine
D. Cis - Platin
Choose the correct answer from the option given below :
A. EDTA
B. Coordination Compounds of Pt
C. D - Penicillamine
D. Cis - Platin
Choose the correct answer from the option given below :
MCQ+4 / -12023
39Coordination Compounds
The $\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}$ bond angle values in a fac- $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]$ complex is/are :
MCQ+4 / -12023
40Coordination Compounds
Match List I with List II:
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MCQ+4 / -12023
41Coordination Compounds
The sum of bridging carbonyls in \(\mathrm{W(CO)_6}\) and \(\mathrm{Mn_2(CO)_{10}}\) is ____________.
INTEGER+4 / -12023
42Coordination Compounds
Chiral complex from the following is :
Here en = ethylene diamine
Here en = ethylene diamine
MCQ+4 / -12023
43Coordination Compounds
Correct order of spin only magnetic moment of the following complex ions is :
(Given At.no. Fe : 26, Co : 27)
(Given At.no. Fe : 26, Co : 27)
MCQ+4 / -12023
44Coordination Compounds
The number of paramagnetic species from the following is _____________.
\(\mathrm{{[Ni{(CN)_4}]^{2 - }},[Ni{(CO)_4}],{[NiC{l_4}]^{2 - }}}\)
\(\mathrm{{[Fe{(CN)_6}]^{4 - }},{[Cu{(N{H_3})_4}]^{2 + }}}\)
$$\mathrm{{[Fe{(CN)_6}]^{3 - }}\,and\,{...
\(\mathrm{{[Ni{(CN)_4}]^{2 - }},[Ni{(CO)_4}],{[NiC{l_4}]^{2 - }}}\)
\(\mathrm{{[Fe{(CN)_6}]^{4 - }},{[Cu{(N{H_3})_4}]^{2 + }}}\)
$$\mathrm{{[Fe{(CN)_6}]^{3 - }}\,and\,{...
INTEGER+4 / -12023
45Coordination Compounds
Total number of moles of AgCl precipitated on addition of excess of AgNO\(_3\) to one mole each of the following complexes \(\mathrm{[Co(NH_3)_4Cl_2]Cl,[Ni(H_2O)_6]Cl_2,[Pt(NH_3)_2Cl_2]}\) and \(\mathrm{[Pd(NH_3)_4]Cl_2}\) is ___________.
INTEGER+4 / -12023
46Coordination Compounds
Match List I with List II
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MCQ+4 / -12023
47Coordination Compounds
The d-electronic configuration of \(\mathrm{[CoCl_4]^{2-}}\) in tetrahedral crystal field in \({e^mt_2^n}\). Sum of "m" and "number of unpaired electrons" is ___________
INTEGER+4 / -12023
48Coordination Compounds
The primary and secondary valencies of cobalt respectively in \(\mathrm{[Co(NH_3)_5Cl]Cl_2}\) are :
MCQ+4 / -12023
49Coordination Compounds
Which of the following cannot be explained by crystal field theory?
MCQ+4 / -12023
50Coordination Compounds
The hybridization and magnetic behaviour of cobalt ion in \(\mathrm{[Co(NH_3)_6]^{3+}}\) complex, respectively is :
MCQ+4 / -12023