In the following which metal complex ion has zero oxidation number?
A. [Cr(H2O)6]3+
B. [CuCl4]2-
C. [Fe(CO)5]
D. [Fe(CN)6]3-
Answer:C
In the following which metal complex ion has zero oxidation number?
A. [Cr(H2O)6]3+ B. [CuCl4]2- C. [Fe(CO)5] D. [Fe(CN)6]3-