Co-Ordination Compounds Question 208
Question: In which of the following compounds transition metal has zero oxidation state
[CBSE PMT 1999]
Options:
A) $ CrO_5 $
B) $ NH_2.NH_2 $
C) $ NOClO_4 $
D) $ [ Fe{{( CO )}_5} ] $
Show Answer
Answer:
Correct Answer: A
Solution:
In $[Fe(CO)_5] $carbon monoxide is a natural ligand, therefore no involvement of Fe electrons in complex, Fe has zero oxidation state.
