JEE Advanced Chemistry question

is a strong field ligand. This is due to the fact that

(A)It carries negative charge
(B)It is a conjugate base of weak acid
(C)It can accept electrons from metal speciesCorrect
(D)It forms high spin complexes with metal species

Answer: (C)

Solution

is a strong-field ligand primarily because, in addition to being a -donor, it has empty orbitals that can accept electron density back from filled metal -orbitals (-backbonding/acceptance), which substantially increases the ligand field splitting beyond what simple

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Question ID VK-160141