The coordination number of $Fe$ and $Co$ in the complex ions,$[Fe(C_{2}O_{4})_{3}]^{3-}$ and $[Co(SCN)_{4}]^{2-}$ are respectively

  • A
    $3$ and $4$
  • B
    $6$ and $8$
  • C
    $4$ and $6$
  • D
    $6$ and $4$

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Similar Questions

For the complexes $(A) \ CoCl_3 \cdot 6NH_3$,$(B) \ CoCl_3 \cdot 5NH_3$,and $(C) \ CoCl_3 \cdot 4NH_3$,if the secondary valency of $Co$ is $6$,what is its primary valency in each case?

Give the chemical formulas for the following:
$(i)$ Sodium nitroprusside
$(ii)$ The purple solution formed in the test for sulphur
$(iii)$ Sodium hexacyanoferrate $(II)$
$(iv)$ Iron $(III)$ hexacyanoferrate $(II)$
$(v)$ Ferri-ferrocyanide
$(vi)$ Sodium thiocyanate

The primary valence of the metal ion in the coordination compound $K_2[Ni(CN)_4]$ is

Which of the following complexes shows a coordination number of $6$?

Write a note on chelating ligands.

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