Question

CFSE $\left({\Delta }_0\right)$ for metal ion in $d^7$ configuration in presence of strong ligand field is

• A. $-0.6{\Delta }_0$
• B. $-0.8{\Delta }_0$
• C. $-1.6{\Delta }_0$
• D. $-1.8{\Delta }_0$

Answer 1

Answer: (D)

$d^7$ configuration in strong field ligand,

CFSE $=(-0.4\times 6+0.6){\Delta }_0$
$=(-2.4+0.6){\Delta }_0$
$=-1.8{\Delta }_0$