1.

How is the M-C pi bond formed?

A. Donation of electron pair of half-filled metal d orbital to empty bonding pi orbital of CO
B. Donation of electron pair of filled metal d orbital to empty bonding pi orbital of CO
C. Donation of electron pair of filled metal d orbital to empty antibonding pi orbital of CO
D. Donation of electron pair of half-filled metal d orbital to empty antibonding pi orbital of CO
Answer» D. Donation of electron pair of half-filled metal d orbital to empty antibonding pi orbital of CO


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