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Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds3 Marks
Question
Write down the IUPAC name for the following complex and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:
$Cs[FeCl_4]$
✓

Answer

$\mathrm{Cs}\left[\mathrm{FeCl}_4\right]$
IUPAC name: Caesium tetrachloroferrate (III).
Oxidation state of $\mathrm{Fe}=+3$
Electronic configuration of $d^6=e_g t_{2 g}{ }^3$
Coordination number $=4$
Shape: : tetrahedral.
Stereochemistry: optically inactive
Magnetic moment:
µ$=\sqrt{\text{n}(\text{n}+2)}$
$=\sqrt{5(5+2)}$
$=\sqrt{35}\text{~}6\text{BM}$

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