A complex compound in which the oxidation number of a metal is zero is:

Chemistry · NEET · NTA Exams — Coordination Compounds

1. K₄[Fe](CN)₆]
2. K₃[Fe(CN)₆]
3. [Ni(CO)₄]
4. [Pt(NH₃)₄]CI₂

Answer

(C) [Ni(CO) 4 ]

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