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Q. No.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 ligand but \([Co(NH_3)_4 Cl_2]^+\) has more than one kind of ligands.
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 |
85%
Level 1: 80%+
NEET - 2024
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Match the complexes from List-I with their corresponding type of isomerism from List-II:
Choose the correct option:
1. A-I, B-III, C-IV, D-II
2. A-I, B-IV, C-III, D-II
3. A-II, B-IV, C-III, D-I
4. A-II, B-III, C-IV, D-I
| List-I (Complex) | List-II (Type of isomerism) |
||
| A. | \(\mathrm{\left[{Co}\left({NH}_3\right)_5\left({NO}_2\right)\right] {Cl}_2}\) | I. | Solvate isomerism |
| B. | \(\mathrm{\left[{Co}\left({NH}_3\right)_5\left({SO}_4\right)\right] {Br}}\) | II. | Linkage isomerism |
| C. | \(\mathrm{\left[{Co}\left({NH}_3\right)_6\right]\left[{Cr}({CN})_6\right]}\) | III. | Ionization isomerism |
| D. | \(\mathrm{\left[{Co}\left({H}_2 {O}\right)_6\right] {Cl}_3}\) | IV. | Coordination isomerism |
1. A-I, B-III, C-IV, D-II
2. A-I, B-IV, C-III, D-II
3. A-II, B-IV, C-III, D-I
4. A-II, B-III, C-IV, D-I
Subtopic: Isomerism in Coordination Compounds |
77%
Level 2: 60%+
NEET - 2024
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Ethylene diaminetetraacetate ion is a/an :
| 1. | Hexadentate ligand | 2. | Ambidentate ligand |
| 3. | Monodentate ligand | 4. | Bidentate ligand |
Subtopic: Ligands |
81%
Level 1: 80%+
NEET - 2024
Hints
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 |
82%
Level 1: 80%+
NEET - 2024
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Type of isomerism exhibited by compounds
[Cr(H2O)6]Cl3, [Cr(H2O)5Cl]Cl2.H2O,
[Cr(H2O)4Cl2]Cl.2H2O and the value of coordination number (CN) of central metal ion in all these compounds, respectively, is:
1. Geometrical isomerism, CN = 2
2. Optical isomerism, CN = 4
3. Ionisation isomerism, CN = 4
4. Solvate isomerism, CN = 6
[Cr(H2O)6]Cl3, [Cr(H2O)5Cl]Cl2.H2O,
[Cr(H2O)4Cl2]Cl.2H2O and the value of coordination number (CN) of central metal ion in all these compounds, respectively, is:
1. Geometrical isomerism, CN = 2
2. Optical isomerism, CN = 4
3. Ionisation isomerism, CN = 4
4. Solvate isomerism, CN = 6
Subtopic: Isomerism in Coordination Compounds |
85%
Level 1: 80%+
NEET - 2023
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A pink-colored cobalt complex, denoted as (X), exists in aqueous solution. Upon reacting with concentrated HCl, it forms a deep blue-colored complex (Y). What are the identities of (X) and (Y), and what is the geometry of complex (Y), denoted as (Z)?
1. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{CoCl}_6\right]^{3-}, \text {Octahedral} \)
2. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{CoCl}_4\right]^{2-}, \text {Tetrahedral} \)
3. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{CoCl}_4\right]^{2-}, \text {Tetrahedral } \)
4. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{CoCl}_6\right]^{3-}, \text {Octahedral} \)
1. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{CoCl}_6\right]^{3-}, \text {Octahedral} \)
2. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{CoCl}_4\right]^{2-}, \text {Tetrahedral} \)
3. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+},\left[\mathrm{CoCl}_4\right]^{2-}, \text {Tetrahedral } \)
4. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+},\left[\mathrm{CoCl}_6\right]^{3-}, \text {Octahedral} \)
Subtopic: VBT, CFT & their Limitations |
Level 4: Below 35%
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A diamagnetic compound among the following is:
1. [Co(F6)]3–
2. [Ni(CN)4]2–
3. [NiCl4]2–
4. [Fe(CN)6]3–
1. [Co(F6)]3–
2. [Ni(CN)4]2–
3. [NiCl4]2–
4. [Fe(CN)6]3–
Subtopic: VBT, CFT & their Limitations |
81%
Level 1: 80%+
NEET - 2013
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The correct IUPAC name for [CrF2(en)2]Cl is:
| 1. | Chlorodifluoridoethylenediaminechromium(III) chloride |
| 2. | Bis-(ethylenediamine)difluoridochromium(III) chloride |
| 3. | Difluorobis-(ethylenediamine)chromium(III) chloride |
| 4. | Chlorodifluoridobis(ethylenediamine)chromium (III) |
Subtopic: Introduction, Classification and Nomenclature |
81%
Level 1: 80%+
NEET - 2013
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Consider the following statements:
Which of the above statements are correct?
| A. | Carnallite (KCl.MgCl2.6H2O) is an example of double salt. |
| B. | Thiocyanato ligand behaves as an ambidentate ligand. |
| C. | [CoF6]3- is called a spin-free complex. |
| 1. | A and B | 2. | B and C |
| 3. | A and C | 4. | A, B, and C |
Subtopic: Introduction, Classification and Nomenclature |
54%
Level 3: 35%-60%
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Please attempt this question first.
Match List-I with List-II :
Choose the correct answer from the options given below:
| List-I (Complexes) | List-II (Type of isomer) | ||
| A. | [Co(NH3)5NO2]Cl2 and [Co(NH3)5ONO]Cl2 | I. | Ionisation isomerism |
| B. | [Cr(NH3)6] [Co(CN)6] and [Cr(CN)6][Co(NH3)6] | II. | Coordination isomerism |
| C. | [Co(NH3)5(SO4)]Br and [Co(NH3)5Br]SO4 | III. | Linkage isomerism |
| D. | [Cr(H2O)6]Cl3 and [Cr(H2O)5Cl]Cl2.H2O | IV. | Solvate isomerism |
| (A) | (B) | (C) | (D) | |
| 1. | (III) | (I) | (II) | (IV) |
| 2. | (II) | (III) | (IV) | (I) |
| 3. | (III) | (II) | (I) | (IV) |
| 4. | (IV) | (III) | (II) | (I) |
Subtopic: Isomerism in Coordination Compounds |
87%
Level 1: 80%+
NEET - 2022
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