The correct order of magnetic moments (only spin value in BM... | CHEMISTRY - BONDING IN METAL CARBONYLS | SolveeIt | Solveeit

Today, August 18

Question

The correct order of magnetic moments (only spin value in BM) among is :

A

Fe(CN)64–> [CoCl4]2–> [MnCl4]2–

B

[MnCl4]2–> [Fe(CN)6]4–> [CoCl4]2–

C

[Fe(CN)6]4–> [MnCl4]2–> [CoCl4]2–

D

[MnCl4]2–> [CoCl4]2–> [Fe(CN)6]4–

Answer

$MnCl4$ 2–> $CoCl4$ 2–> $Fe(CN)6$ 4–

Explanation

Solution

(i) Co2+, 3d7

Cl– is weak field ligand.

(ii) Mn2+, 3d5

Cl– is weak field ligand.

(iii) Fe2+, 3d6

CN– is strong field ligand so compels for pairing of electrons.