GKFix MCQ Question

Which of the following best describes the stability gained when Cr2+ (d4) is oxidized to Cr3+ (d3)?

• A. Stabilization due to a fully filled d subshell.
• B. Stabilization due to a half-filled d subshell.
• C. Stabilization due to pairing of electrons in the eg level.
• D. Stabilization due to a half-filled t2g level in the d3 configuration.