Chemistry-Ligands

NEET Chemistry Ligands MCQ Question

Type: MCQ-numerical-Medium-Class 12

Which ligand from the spectrochemical series produces the smallest crystal field splitting energy (Δo) in an octahedral coordination compound?

A

Iodide (I–)

B

Fluoride (F–)

C

Cyanide (CN–)

D

Water (H2O)

Correct Answer

Option A

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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