The EAN of iron in potassium ferricyanide is

The EAN of iron in potassium ferricyanide is
  1. 18
  2. 54
  3. 35
  4. 23

Solution

EAN of a central metal ion $=($ atomic no. of central atom) $-$ oxidation state $+$ no. of ligands $\times 2=26-3+$ $(6 \times 2)=23+12=35$ ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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