In which complex is the transition metal...

In which complex is the transition metal in zero. oxidation state:

A

`[Co(NH_3)_6]Cl_2`

B

`[Fe(H_2O)_6SO_4]`

C

`[Ni(CO)_4]`

D

`[Fe(H_2O)_3](OH)_2`

Text Solution

Verified by Experts

The correct Answer is:

C

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