JEE Main 2026 Chemistry question
The correct statements about metal carbonyls are: A. The metal-carbon bonds in metal carbonyls possess both σ and π-character. B. Due to synergic bonding interactions between metal and CO ligand, the metal-carbon bond becomes weak. C. The metal-carbon σ bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of metal. D. The metal-carbon π bond is formed by the donation of electrons from filled d-orbital of metal into vacant π* orbital of CO.
Answer: (B)
Solution
A, C, D correctly describe synergic bonding. B is false: synergic bonding
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