The present work deals with the study of proton - ligands and metal- ligands of tartaric acid, Adipic acid , Glutaric acid and β –Amino propionic acid(APA) with Mn(II), Cu(II), Fe(III), Ni(II) and UO2(II). More over the Binary chelates of carboxylic acids and amino acids have been studied with Lanthanides. The metal ligand stability constant of Binary and Ternary complexes were evaluated using Irving–Rossotti titration technique.