Question

In which of the following compound transition metal has zero oxidation state

• A. $Cr{O}_5$
• B. $N{H}_{2}N{H}_2$
• C. $NOCl{O}_4$
• D. $\left[Fe\right(CO{)}_5]$

Answer 1

The correct option is D $\left[Fe\right(CO{)}_5]$

In $\left[Fe\right(CO{)}_5]$, transition metal Fe has zero oxidation state.