MCQ
Select the correct $M-C$ Bond order?
- A$[Ni(CO)_4] > [Co(CO)_4]-> [Fe(CO)_4]^{-2}$
- ✓$[Ni(CO)_4] < [Co(CO)_4]-< [Fe(CO)4]^{-2}$
- C$[Ni(CO)_4] < [Co(CO)_4]^-= [Fe(CO)4]^{-2}$
- D$[Ni(CO)_4] = [Co(CO)_4]^-= [Fe(CO)4]^{-2}$
✓
Answer
Correct option: B.
$[Ni(CO)_4] < [Co(CO)_4]-< [Fe(CO)4]^{-2}$
b
$M-C\, B.O./C-O\, B.L.\, \propto \,-ve\,$ charge
$M-C\, B.O./C-O\, B.L.\, \propto \,-ve\,$ charge
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