Question

In which of the following coordination entites the magnitude of `Delta_(0)` (CFSE in octehedral field) will be maximum.
`(At. No .Co = 27)`
A. `[Co(CN)_(6)]^(3-)`
B. `[Co(C_(2)O_(4))_(3)]^(3-)`
C. `[Co(H_(2)O)_(6)]^(3+)`
D. `[Co(NH_(3))_(6)]^(3+)`

Answer 1

Correct Answer - A
CFSE in octahedral field depends upon the nature of ligands. Stronger the ligands larger will be the value of `Delta_("oct")`.