Which of the following complex ions violates the EAN rule?

Chemistry · JEE Main · NTA Exams — Coordination Compounds

1. [Pt(NH₃)₆]⁴⁺
2. [Fe(CO)₅]
   
3. [Fe(CN)₆]^4–
4. [Mn(H₂O)₆]²⁺

Answer

(D) [Mn(H 2 O) 6 ] 2+

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