17.6 Complex Ion Formation | Lewis Acids & Bases, Ligands & EDTA | Class 12 Chemistry 2026 Inorganic

In this lecture, we discuss Topic 17.6: Complex Ion Formation from Chapter 17, Class 12 Chemistry New Book 2026. The lecture covers Lewis acid–base theory, Lewis acids, Lewis bases, ligands, coordination number, chelating ligands, EDTA, and examples of complex ion formation involving Group 2 and transition-metal ions. We also discuss important applications of complex formation in water softening and the removal of toxic metal ions from the body. #ComplexIonFormation #Class12Chemistry #Chemistry2026 #Chapter17 #Topic177 #LewisAcid #LewisBase #Ligands #ChelatingLigands #EDTA #CoordinationChemistry #TransitionElements #Group2Elements #ComplexIons #WaterSoftening #ToxicMetalRemoval #ChemistryWithAAK #FScChemistry #PunjabBoard #boardexam2026