Question

The correct increasing order of stability of the complexes based on \( \Delta \) value is:

• A. IV < III < II < I
• B. I < II < IV < III
• C. III < II < IV < I
• D. II < III < I < IV

Hint:

To determine the stability order based on \( \Delta \), consider the ligand field splitting energy and the ligand's electron-donating or withdrawing effects.

Answer 1

The Correct Option is C

- The stability of complexes depends on the \( \Delta \) value, which is related to the splitting of d-orbitals in the ligand field. - Higher \( \Delta \) value leads to greater stability. - The order of stability based on \( \Delta \) is: - III < II < IV < I.
Thus, the correct answer is \( \text{III < II < IV < I} \).