MCQ
The $[Fe(CN)_6]^{3-}$ complex ion
- Aexhibits planar geometry
- Bis diamagnetic
- ✓should be very stable
- Dhas $2$ unpaired electrons
✓
Answer
Correct option: C.
should be very stable
c
In the given complex the oxidation state of iron is $+3$. The electronic configuration of iron in $+3$ oxidation state is $1 s ^2 2 s ^2 p ^6 3 s ^2 3 p ^6 3 d ^5$. The compound has $1$ unpaired electrons and exhibit octahedral geometry. It is a low spin complex and is very stable.
In the given complex the oxidation state of iron is $+3$. The electronic configuration of iron in $+3$ oxidation state is $1 s ^2 2 s ^2 p ^6 3 s ^2 3 p ^6 3 d ^5$. The compound has $1$ unpaired electrons and exhibit octahedral geometry. It is a low spin complex and is very stable.
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