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Metal carbonyls - class-XII

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$Cr - C$ bond in the compound $[Cr(CO) _6]$ shows $\pi$ - character due to :

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A
synergic bonding
💡 Explanation:
  1. Synergic bonding is the description of the bonding of $\pi$ - configuration ligands to the transition metal which involves donation of electrons through back bonding.
    2. Mainly carbonyl ligands in complex compounds involves in this type of bonding.
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