The magnitude of crystal field stabilisation energy in octahedral field depends on : (I) the nature of the ligand (II) the charge on the metal ion (III) whether the metal is in the first, second or th

Question

The magnitude of crystal field stabilisation energy in octahedral field depends on : (I) the nature of the ligand (II) the charge on the metal ion (III) whether the metal is in the first, second or third row of the transition elements

Prashant Kotian · Accepted Answer

Correct answer: A. Step 1: Ligands with higher field strength produce larger splitting (Δ_o) (I). Step 2: Higher positive charges on the metal ion attract ligands more closely, increasing orbital repulsion and Δ_o (II). Step 3: Moving from 3d to 4d to 5d transition series increases orbital size and splitting energy (III). Since all three statements are correct, option (a) is correct.

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