NEET Chemistry Ligands MCQ Question
Which ligand from the spectrochemical series produces the smallest crystal field splitting energy (Δo) in an octahedral coordination compound?
Iodide (I–)
Fluoride (F–)
Cyanide (CN–)
Water (H2O)
Correct Answer
Detailed Explanation
According to the NCERT context, the spectrochemical series lists ligands in order of increasing field strength: I– < Br– < SCN– < Cl– < S2– < F– < OH– < C2O42– < H2O... Therefore, iodide (I–) produces the smallest crystal field splitting energy.
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