Standard Books Chemistry Metal Carbonyls MCQ Question with Solution

Cr–C bond in the compound [Cr(CO)₄] shows π-character due to

A

covalent bonding

B

coordinate bonding

C

synergic bonding

D

ionic bonding

Correct Answer

Option C

Detailed Explanation

Cr–Cπ bond is formed by the donation of a pair of electrons from a filled d-orbital of Cr into the vacant antibonding π* orbital of CO. This is synergic bonding due to which both σ and π character is shown in Cr–C bond.

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