Question

when we use old and leftover cooking oil for making foodstuff it is found to produce a four odour (a) what is it called as? (b) How can it be prevented?

Answer 1

this is knows as rancidity.
food oils which already has antioxidants
do not get rancidity

Answer 2

this is know as rancidity
the food particles are already antioxidant do not have rancidity
I hope this helps you
please mark my answer as brainliest