A) \[Ni{{(CO)}_{4}}\]
B) \[{{[Co{{(CO)}_{4}}]}^{\text{O}-}}\]
C) \[{{[Fe{{(CO)}_{4}}]}^{2-}}\]
D) \[{{[Mn{{(CO)}_{6}}]}^{+}}\]
Correct Answer: C
Solution :
| [c] \[{{[Fe{{(CO)}_{4}}]}^{2-}}\] |
| Since metal atom is carrying maximum -ve charge therefore it would show maximum synergic bonding as sa resultant C-O bond length would be maximum. |
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