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The oxidation state of chromium in Cr(CO...

The oxidation state of chromium in `Cr(CO)_(6)` is

A

covalent bonding

B

coordinate bonding

C

synergic bonding

D

ionic bonding

Text Solution

Verified by Experts

The correct Answer is:
D

`Cr-C pi` bond is formed by the donation of a pair of electrons from a filled d-orbitals of Cr into the vacant antibonding `pi^(**)` orbtial of Co. This is synergic bonding due to which both `sigma` and `pi` character is shown in `Cr-C` bond .
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