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Which of the following can be reduced ea...

Which of the following can be reduced easily -

A

`V(CO)_(6)`

B

`Mo(CO)_(6)`

C

`[Co(CO)_(4)]^(-)`

D

`Fe(CO)_(5)`

Text Solution

Verified by Experts

The correct Answer is:
A
`V(CO)_(6)` can be easily reduced to `[V(CO)_(6)]^(-). V(CO)_(6)` has 17 bonding electrons for which it is very reactive and unstable. On the other hand `[V(CO)_(6)]^(-)` has complex set of 18 bonding electrons, as an electron is added into the bonding orbital when `V(CO)_(6)` gets reduced to `[V(CO_(6))]^(-)`. Rest of the compounds have 18 bonding electrons.
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