Question

The number of unpaired electrons in $d^6,$ low spin, octahedral complex is

• A. 4
• B. 2
• C. 1
• D. 0

Answer 1

Answer: (D)

Low spin complex $\Rightarrow {\Delta }_0>P$

Thus pairing takes place in $t_{2g}$

$d^6\Rightarrow t_{2g}^6{e}_g^0$

Thus unpaired electrons $=0$