The value of CFSE ( ) for complexes given below follow the order : - - -

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Problem

The value of CFSE (

\Delta_0

) for complexes given below follow the order : -

[\text{Co}(\text{NH}_3)_6]^{3+}

[\text{Rh}(\text{NH}_3)_6]^{3+}

[\text{Ir}(\text{NH}_3)_6]^{3+}

(1)

\text{I} < \text{II} < \text{III}

(2)

\text{I} > \text{II} > \text{III}

(3)

\text{I} < \text{II} > \text{III}

(4)

\text{I} = \text{II} = \text{III}