Among the following metal carbonyls, the C-O bond order is lowest in – InterviewSolution

1.	Among the following metal carbonyls, the C-O bond order is lowest in
Answer» `[Mn(CO)_(6)]^(+)` `[Fe(CO)_(5)]` `[Cr(CO)_(6)]` `[V(CO)_(6)]^(-)` Solution :An anionic carbonyl complex can delocalise more electron density to antibonding `PI`-orbital (`d pi p pi` back bonding) of CO and THUS lowers the BOND order.

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