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Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds1 Mark
MCQ
Select the correct $\text{IUPAC}$ name for $\left[\mathrm{FeF}_4\left(\mathrm{OH}_2\right)_2\right]^{-}$.
  • A
    Diaquatetrafluoroiron $(\text{III})$ ion
  • ✓
    Diaquatetrafluoroferrate $(\text{III})$ ion
  • C
    Diaquatetrafluoroiron $(I)$ ion
  • D
    Diaquatetrafluoroferrate $(I)$ ion
✓

Answer

Correct option: B.
Diaquatetrafluoroferrate $(\text{III})$ ion
In $\left[\mathrm{FeF}_4\left(\mathrm{OH}_2\right)_2\right]^{-}$ the oxidation state of iron is $+3$ so correct $\text{IUPAC}$ name is diaquatetrafluoroferrate $(\text{III})$ ion.

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