1.

Among the following, metal carbonyls, the C-O bond is strongest in :

Answer»

`[MN(CO)_(6)]^(+)`
`[Cr(CO)_(6)]`
`[V(CO)_(6)]^(-)`
`[Ti(CO)_(6)]^(2-)`

Solution :`M-C=O`
NEGATIVE charge on central atom `(uarr)`
`="M-C BE" (uarr), "M-C B.L."(DARR)`
`="C-O B.E." (darr), "C-O B.L." (uarr)`


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