Question

why does edible oils shows rancidity when stored for long period

Answer 1

the edible oils undergo oxidation process.....

so oxidation of oils leads to rancidity.....i.e. spoilage of taste nd foulness

Answer 2

hey mate here's your answer-
edible oil shows rancidity as when they shown in light,the fat is converted into oil which makes it rancid.
hope it'll help you ✌️✌️