Corrosion is the slow damage to metals caused by chemical reactions with oxygen and water. Rancidity is the breakdown of fats and oils exposed to air,
syllab.in · free
❓ Quick answer
What is corrosion and rancidity?
Corrosion is the slow eating away of a metal when it reacts with moisture and gases such as oxygen in the air — for example, iron rusting. Rancidity is the spoiling of fats and oils in food when they are oxidised by air, giving a bad smell and taste.
❓ Quick answer
What is the difference between corrosion and rancidity?
Both are oxidation reactions, but corrosion happens to metals (rusting of iron, black coating on silver) while rancidity happens to fatty and oily foods. Corrosion damages metal objects; rancidity spoils food.
❓ Quick answer
How can corrosion and rancidity be prevented?
Corrosion is prevented by painting, oiling, greasing, galvanising (a zinc coating) or using alloys like stainless steel. Rancidity is prevented by adding antioxidants, flushing packets with nitrogen gas, refrigeration and airtight packing.
Learn it fully — free
syllab.in