Question

# In which of the following compounds transition metal may have zero oxidation state?

A
[Fe(CO)5]
B
[Ni(CN)4]2
C
Fe2O3
D
CrO5

Solution

## The correct option is B $$[Fe(CO)_5]$$Since $$CO$$ is neutral, $$Fe$$ is in zero oxidation state in $$[Fe(CO)_5]$$.Chemistry

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