Which of the following carbonyls will have the strongest C-O bondA. `V (CO)_(6)^(-)`B. `Fe(CO)_(5)`C. `Mn(CO)_(6)^(+)`D. `Cr(CO)_(6)`

Which of the following carbonyls will have the strongest C-O bondA. `V

1.	Which of the following carbonyls will have the strongest C-O bondA. `V (CO)_(6)^(-)`B. `Fe(CO)_(5)`C. `Mn(CO)_(6)^(+)`D. `Cr(CO)_(6)`
Answer» Correct Answer - C As `+` ve charge on the central metal atom increases, the less readily the metal can donate electron density into the `pi^(**)` orbitals of CO ligand to weaken the C-O bond. Hence C-O bond would be strongest in `Mn(CO)_(6)^(+)`

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Which of the following carbonyls will have the strongest C-O bondA. `V (CO)_(6)^(-)`B. `Fe(CO)_(5)`C. `Mn(CO)_(6)^(+)`D. `Cr(CO)_(6)`

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