In which of the following coordination entities the magnitude of `Deltao` (CFSE in ocetahedral field) will be maximum?

Question

In which of the following coordination entities the magnitude of `Deltao` (CFSE in ocetahedral field) will be maximum?

In which of the following coordination entities the magnitude of `Deltao` (CFSE in ocetahedral field) will be maximum?
A. `|Co(H_(2)O)_(6)|^(3+)`
B. `|Co(NH_(3))_(6)|^(3+)`
C. `|Co(CN)_(6)|^(3-)`
D. `|Co(C_(2)O_(4))_(3)|^(3-)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
As `CN^(-)` is a next strong ligand present just before the strongest ligand CO in the spectro-chemical series, it causes maximum crystal field pairing between `t_(2g) and e_(g)` orbitals in an octahedral field . Hence `|Co(CN)_(3)|^(3-)` has maximum `Delta_(0)` value .

5 views Answered 2023-02-05 15:29