Oxidation number of nickel in `Ni(CI)_(4)`

Oxidation number of nickel in Ni(CO)_(4) is

What is the oxidation number of nickel in Ni(CO)_4 ?

Oxidation number if nickel in Ni(CO_(4)) is

Calculate the oxidation number of nickel in Ni(CO)_4 iron in Fe(CO)_5 and carbon in CH_2O .

Oxidation number of Ni in Ni(CO)_(4) is-

What is the oxidation number of Ni in Ni(CO)_4

Assertion :- Oxidation number of Ni in [Ni(CO)_(4)] is zero. Reason :- Nickel is bonded to neutral ligand, carbonyl.