Ligands are broadly classified into two classes classical and non-classical ligands, depending on their donor and acceptor ability. Classical ligands form classical complexes while non-classical ligan

Question

Ligands are broadly classified into two classes classical and non-classical 
ligands, depending on their donor and acceptor ability. Classical ligands form 
classical complexes while non-classical ligands form non-classical complexes. 
Bonding mechanism in non-classical is called synergic bonding.

Prashant Kotian · Accepted Answer

Correct answer: C. Sc : 3d^1 4s^2, As d-orbitals at Sc^3+ are empty, hence, there is no synergic bonding in [Sc(CO)6]^3+.

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