The set which does NOT have ambidentate ligand(s) is:

Question

Canvas Classes · Accepted Answer

Strategy:
 Review the provided sets for ligands that can coordinate through different donor atoms (, , ).

Step 1: Evaluate Set (1)
-  (oxalate): Bidentate via O atoms only.
-  (ethylenediamine): Bidentate via N atoms only.
- : Monodentate via O only.
None of these are ambidentate.

Step 2: Check other sets
- Sets (2), (3), and (4) contain , , or , all of which are ambidentate.

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