MHT CET Chemistry question

Chemistry Coordination Compounds MHT CET

In metal carbonyl, there is

(A)No bond between CO and metal atom
(B)Only bond between metal atom and CO molecules
(C)One and one bond (back-donation) between metal atom and CO moleculesCorrect
(D)The metal-carbon bonds does not exist at all

Answer: (C)

Solution

CO donates a lone pair to the metal ( bond, ) and the metal back-donates electrons from filled d orbitals

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Question ID VK-073115