1.

Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) isA. `[Fe(H_(2)O)_(6)]^(3+)`B. `[Co(H_(2)O)_(6)]^(2+)`C. `[Co(H_(2)O)_(6)]^(3+)`D. `[Mn(H_(2)O)_(6)]^(3+)`

Answer» Correct Answer - A
`Fe^(3+)(d^(5))` has `t_2g^(3)``e_(g)^(2)` configuration CFSE(`delta_0)` = `3 xx (-0.4) + (2+).6) `= 0


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