Question

Which of the following is correct order of ligand field strength? 

(1) \(S^{2-}<C_2O^{2-}_4<NH_3<en<s^2\)

(2) \(S^{2-}<C_2O^{2-}_4<NH_3<en<CO\)

(3) \(NH_3<C_2O^{2-}_4<NH_3<en<CO\)

(4) \(S^{2-} < NH_3<NH_3<en<CO^{2-}_4\)

Answer 1

(2) \(S^{2-}<C_2O^{2-}_4<NH_3<en<CO\)

The increasing order of field strength of ligands (according to spectrochemical series)