Question:
[Fe(CN)6]4–
[Fe(CN)6]3–
[Ti(CN)6]3–
[Ni(CN)4]2–
[Co(CN)6]3–
Among the given complexes, number of paramagnetic complexes is_______.
[Fe(CN)6]4–
[Fe(CN)6]3–
[Ti(CN)6]3–
[Ni(CN)4]2–
[Co(CN)6]3–
Among the given complexes, number of paramagnetic complexes is_______.
[Fe(CN)6]3–
[Ti(CN)6]3–
[Ni(CN)4]2–
[Co(CN)6]3–
Among the given complexes, number of paramagnetic complexes is_______.
Updated On: Jan 3, 2025
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Correct Answer: 2
Solution and Explanation
The correct answer is 2
| Valence shell configuration | Magnetic Nature | |
| [Fe(CN)6]4– | 3d6 (Pairing) | Diamagnetic |
| [Fe(CN)6]3– | 3d5 (Pairing) | Paramagnetic |
| [Ti(CN)6]3– | 3d1 | Paramagnetic |
| [Ni(CN)4]2– | 3d8 (Pairing) | Diamagnetic |
| [Co(CN)6]3– | 3d6 (Pairing) | Diamagnetic |
Therefore , number of paramagnetic complexes is 2
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.