MCQ
Which of the following has diamagnetic character
- A${[NiC{l_4}]^{2 - }}$
- B${[Co{F_6}]^{3 - }}$
- C${[Fe{({H_2}O)_6}]^{2 + }}$
- ✓${[Ni{(CN)_4}]^{2 - }}$
✓
Answer
Correct option: D.
${[Ni{(CN)_4}]^{2 - }}$
d
(d) $Ni$ in presence of $C{N^ - }$
(d) $Ni$ in presence of $C{N^ - }$
$Ni^{+2}$ in presence $C{N^ - } = [Ar]$
As ${[Ni{(CN)_4}]^{2 - }}$ has no unpaired electron. It is diamagnetic.
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