Q.

The correct order of ligands arranged in increasing field strength.                        [2024]

1 H2O<OH-<CN-<NH3  
2 Cl-<OH-<Br-<CN-  
3 Br-<F-<H2O<NH3  
4 F-<Br-<I-<NH3  

Ans.

(3)

    In general, ligands can be arranged in a series in the order of increasing field strength as given below:

    I-<Br-<SCN-<Cl-<S2-<F-<OH-<C2O42-<H2O<NCS-<edta4-<NH3<en<CN-<CO