Chemistry - Coordination Chemistry Question with Solution | TestHub
List - I | List - II |
|---|---|
(A) | (P) EAN of |
(B) | (Q) Metal-carbon linkage(s) present |
(C) | (R) Oxidation number of |
(D) | (S) Fe-N linkage(s) present |
| (T) -donor ligand |
Options:
Answer:
Solution:
(A) K₃[Fe(CN)₅(NO₂)]
* Let the oxidation state of Fe = .
* .
* CN⁻ forms an Fe–C bond, and NO₂⁻ (nitro) forms an Fe–N bond.
* Therefore: Q, R, S
(B) Fe(CO)₅
* CO is a neutral ligand, so the Fe oxidation state = 0.
* EAN .
* Fe–C bonds are present through CO.
* Therefore: P, Q
(C) Fe(η⁵-C₅H₅)₂ (Ferrocene)
* Each Cp ligand is C₅H₅⁻, so the Fe oxidation state = +2.
* EAN .
* Cp⁻ is a π-donor ligand and bonds through carbon atoms.
* Therefore: P, Q, R, T
(D) [Fe(dmg)₂]⁰
* dmg (dimethylglyoximate) coordinates through nitrogen atoms.
* In a neutral complex, the Fe oxidation state = +2.
* Hence, an Fe–N linkage is present.
* Therefore: R, S