Question:medium
Out of Ti3+, Cr3+, Fe2+ and Ni2+ ions, the one which is the most stable ion in aqueous solution is:
Out of Ti3+, Cr3+, Fe2+ and Ni2+ ions, the one which is the most stable ion in aqueous solution is:
Show Hint
Half-filled and fully filled d-orbital configurations offer extra stability in transition metal ions.
Updated On: Feb 24, 2026
- Ti3+
- Cr3+
- Fe2+
- Ni2+
Show Solution
The Correct Option is B
Solution and Explanation
Cr3+ (3d3) exhibits a half-filled t2g configuration in an octahedral field. This configuration provides significant stability due to its symmetrical electron distribution and exchange energy, making Cr3+ the most stable ion in aqueous medium.
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