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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
$[FeN_3(O_2) (SCN)_4]^{4-}$ is named as 
  • A
    azidosuperoxidotetrathiocyanato $-s-$ ferrate $(II)$
  • B
    azidodioxygentetrathiocyanato $-s-$ ferrate $(III)$
  • C
    azidoperoxotetrathiocyanato $-s-$ ferrate $(II)$
  • ✓
    azidodioxidotetrathiocyanato $-s-$ ferrate $(III)$
✓

Answer

Correct option: D.
azidodioxidotetrathiocyanato $-s-$ ferrate $(III)$
d
Neutral $\mathrm{NO}=3 \mathrm{e}^{-}$ donor

$\left[ {{\text{Fe}}{{({\text{CO}})}_2}{{({\text{NO}})}_2}} \right]$                    $\left[ {{\text{Ni}}{{({\text{CO}})}_4}} \right]$

$\mathrm{EAN}=26+4+6$                      $28+8$

              $36$                                          $36$

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