1.

Which of the following has lower stretching frequency for C-O bond ?

Answer»

`[MN(CO)_(6)]^(+)`
`[V(CO)_(6)]^(-)`
Both have equal stretching frequency
None of these

Solution : EXTENT of synergic bonding
= `[V(CO)_(6)]^(-) GT [Mn(CO)_(6)]^(+)`
C-O BOND order
= `[Mn(CO)_(6)]^(+) gt [V(CO)_(6)]^(-)`
C-O bond stretching frequency
=`[Mn(CO)_(6)]^(+)gt[V(CO)_(6)]^(-)`


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