Deffine rancidity and Carrasion
and earrosion and methads to
Prevent them
Answers
Answer:
Rancidity
Have you observed a foul smell in nuts that have been stored for months? Or potato chips that have been sitting in the kitchen cupboard for too long? When such foul odour emanates from food, it is said to be rancid. In simple terms, rancidity is the spoilage of food such that it becomes unsuitable and undesirable for consumption.
Food turns rancid when the fats and oils within them get oxidized and the taste and smell of the food changes. Oxidation of fats generates highly reactive molecules in the rancid food which is responsible for the unpleasant odour and flavour. These chemical reactions also reduce the nutrition of the food. Some studies show that rancid food can have harmful health effects if consumed.
Corrosion is the wearing away of metals due to chemical reactions, mainly oxidation. In this process, metals lose their metallic properties. This causes a lot of damage to car bodies, ships, bridges, iron railings and to all objects made of iron. Iron is used in a lot of places like the construction of bridges, tools, pipes, heavy machinery etc.