The coordination geometry around the manganese in decacarbonyldimanganese(0) is

Question

5.33 gram of $CrCl_3 \cdot 6H_2O$ (1:3 electrolyte) is passed through cation exchanger. The resulting solution is then treated with an excess of $AgNO_3$, leading to formation of 8.61 gran of precipitate. Calculate :
$\frac{\text{number of moles of complex reacted}}{\text{number of moles of AgCl precipitated}} \times 100$

Answer 1

Solution: Decacarbonyldimanganese(0), denoted as Mn(CO)₁₀, is a complex featuring a manganese atom bonded to ten carbon monoxide ligands.

Coordination Number: The manganese atom in this complex has a coordination number of 10. This coordination number typically dictates an octahedral geometry.

The arrangement of the carbon monoxide ligands around the central manganese atom is optimized to reduce ligand-ligand repulsion, resulting in an octahedral structure.

Geometry: An octahedral arrangement is characteristic of complexes with higher coordination numbers, where the ligands are positioned at the vertices of an octahedron surrounding the central metal atom.

Therefore, the coordination geometry surrounding manganese in Mn(CO)₁₀ is: Octahedral

Column-I (Complex compound)	Column-II ($\Delta_0$ (CFSE) $\text{cm}^{-1}$)
(i) $[Cr(CN)_6]^{3-}$	(P) 17000
(ii) $[Cr(H_2O)_6]^{3+}$	(Q) 15000
(iii) $[Cr(en)_3]^{3+}$	(R) 12000
(iv) $[CrF_6]^{3-}$	(S) 20000

The coordination geometry around the manganese in decacarbonyldimanganese(0) is

The Correct Option is A

Solution and Explanation

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