MCQ
Which of the following compound is diamagnetic
- A$K_4[Fe^{+2}(CN)_5(O_2 )]$
- ✓$[NiF_6]^{-2}$
- C$[Fe(H_2O)_5(NO)]^{+2}$
- DAll of these
✓
Answer
Correct option: B.
$[NiF_6]^{-2}$
b
$K_4[Fe^{+2}(CN)_5(O_2)]$ is paramagnetic due to $O_2^\circleddash$
$K_4[Fe^{+2}(CN)_5(O_2)]$ is paramagnetic due to $O_2^\circleddash$
$[NiF_6]^{2-} \to d^2sp^3$ hybridisation, diamagnetic
$[Fe(H_2O)_5(NO)]^{+2} \to $ paramagnetic
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