Q. Which of following coordinate complexes is an exception to EAN rule?
(Given Atomic number Pt = 78, Fe = 26, Zn = 30, Cu = 29)

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A

B

C

D

Solution:

As in EAN is 35, so it does not follow EAN rule.
EAN Atomic number of central atom + Number of electrons donated by ligands - oxidation state of central atom.
(A) EAN
(B) EAN
(C) EAN
(D) EAN

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