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The crystal field stabilization energy (CFSE) of [Fe(H 2 O) 6 ]Cl 2 and K 2 [NiCl 4 ] respectively, are :

1. – 0.4 Δ o and – 0.8 Δ t
2. – 0.6 Δ o and – 0.8 Δ t
3. – 2.4 Δ o and – 1.2 Δ t
4. – 0.4 Δ o and – 1.2 Δ t

Correct answer: – 0.4 Δ o and – 0.8 Δ t

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