Among the following metal carbonyls, the C-0 bond order is lowest in

1.	Among the following metal carbonyls, the C-0 bond order is lowest in
A.	\[{{[Mn{{(CO)}_{6}}]}^{+}}\]
B.	\[[Fe{{(CO)}_{5}}]\]
C.	\[[Cr{{(CO)}_{6}}]\]
D.	\[{{[V{{(CO)}_{6}}]}^{-}}\]
Answer» C. \[[Cr{{(CO)}_{6}}]\]

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Among the following metal carbonyls, the C-0 bond order is lowest in

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