STANDARDChemistry-Coordination Compounds
STANDARD Chemistry Metal Carbonyls MCQ Question
Type: MCQ-conceptual-Medium-Class 12
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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