<prompt> Which of the following reaction is due to lipid peroxidation ?SaponificationRancidityHydrogenationSoap formation  <response>: Ans. is b i.e., Rancidity Peroxidation auto-oxidation of lipids exposed to oxygen is responsible not only for deterioration of foods rancidity but also for damage to tissues in vivo. Lipid peroxidation is a chain of reaction generating free radicals that initiate fuher peroxidation. 