Match List I with List II. 
List I (Complex) List II (Type of isomerism)
A. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2\) I. Solvate isomerism
B. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}\) II. Linkage isomerism
C. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]\) III. Ionization isomerism
D. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3\) IV. Coordination
Choose the correct from the options given below : 
1. \(\text { A-I, B-III, C-IV, D-II }\)
2. \(\text { A-I, B-IV, C-III, D-II }\)
3. \(\text { A-II, B-IV, G-III, D-I }\)
4. \(\text { A-II, B-III,G-IV, D-I }\)
Subtopic:  Isomerism in Coordination Compounds |
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NEET - 2024
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Given below are two statements :
Statement I : Both \(\left[\text{Co}\left(\text{NH}_3\right)_6\right]^{3+}\) and \(\left[\text{CoF}_6\right]^{3-}\) Complexes are octahedral but differ in their magnetic behaviour.
Statement II : \(\left[\text{Co}\left(\text{NH}_3\right)_6\right]^{3+}\) is diamagnetic whereas \(\left[\text{CoF}_6\right]^{3-}\) is paramagnetic.
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 and Statement II is False.
3. Statement I is False but Statement II is True.
4. Both Statement I and Statement II are True.
Subtopic:  VBT, CFT & their Limitations |
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NEET - 2024
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Given below are two statements : 
Statement I:  \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) is a homoleptic complex, whereas \([Co(NH_3)_4 Cl_2]^+\) is a heteroleptic complex.
Statement II: Complex \([Co(NH_3)_6]^{3+}\) has only one kind of ligands but \([Co(NH_3)_4 Cl_2]^+\) has more than one kind of ligand 
In 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. Statement I is false but Statement II is True.
4. Both Statement I and Statement II are True.
Subtopic:  Introduction, Classification and Nomenclature |
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NEET - 2024
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The correct 'spin only' magnetic moments of \([\text{CoF}_6]^{3-}\) and \(\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) respectively, are:

1, 0 BM and 4.9 BM
2. 0 BM and 0 BM
3. 4.9 BM and 0 BM
4. 4.9 BM and 4.9 BM
Subtopic:  VBT, CFT & their Limitations |
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From NCERT
NEET - 2024
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Match List -I with List-II 
List -I
(Complex ion)
List -II
(Hybridisation)
A.  \([\mathrm{Ni}(\mathrm{CN})_4]^{2-}\) I.  \(s p^3 \)
B.  \(\mathrm{[CoF_6}]^{3-}\) II.  \( d^2sp^3 \)
C.  \([\mathrm{Co}(\mathrm{C}_2 \mathrm{O}_4)_3 ]^{3-}\) III.  \(s p^3d^2\)
D.  \(\left(\mathrm{NiCl}_4\right)^{2-}\) IV.  \(dsp^2\)

Choose the correct answer from the options given below:
1. A-IV, B-III, C-II, D-I
2. A-III, B-I, C-IV, D-II
3. A-I, B-II, C-III, D-IV
4. A-III, B-IV, C-II, D-I
Subtopic:  VBT, CFT & their Limitations |
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The Crystal Field Stabilisation Energy (CFSE) and the 'spin only' magnetic moment of \(\mathrm{[FeF_6]^{3-}}\) ion respectively, are:

1. \(0~\Delta~\text{and}~5.9~\text{BM}\)
2. \(0~\Delta~\text{and}~1.73~\text{BM}\)
3. \(2.0~\Delta~\text{and}~5.9~\text{BM}\)
4. \(2.0~\Delta~\text{and}~1.73~\text{BM}\)
Subtopic:  VBT, CFT & their Limitations |
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Ethylene diaminetetraacetate ion is a/an :
1. Hexadentate ligand 2. Ambidentate ligand
3. Monodentate ligand 4. Bidentate ligand
Subtopic:  Ligands |
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NEET - 2024
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Which of the following is not an ambidentate ligand?
1. \(\mathrm{C_2O^{2-}_4}\) 2. \(\mathrm{SCN}^-\)
3. \(\mathrm{NO^{-}_2}\) 4. \(\mathrm{CN}^-\)
Subtopic:  Ligands |
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NEET - 2024
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\([\mathrm{Mn}_2(\mathrm{CO})_{10}]\) and \([\mathrm{Co}_2(\mathrm{CO})_8]\) structures have:

A. Metal-Metal linkage
B. Terminal CO groups
C. Bridging CO groups
D. Metal in zero oxidation state
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
Subtopic:  Organometallic Complexes & their Uses |
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NEET - 2024
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Homoleptic complex from the following complexes is: 

1. Triamminetriaquachromium (III) 
2. Potassium trioxalatoaluminate (III) 
3. Diamminechloridonitrito-N-platinum (II) 
4. Pentaamminecarbonatocobalt (III) chloride 
Subtopic:  Introduction, Classification and Nomenclature |
 78%
From NCERT
NEET - 2023
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