Question

what is edible oil chemically​

Answer 1

edible oil is unsaturated fatty acid.

Answer 2

Vegetable oils (and margarine, made from these oils) are oils extracted from seeds like the rapeseed (canola oil) soybean (soybean oil), corn, sunflower, safflower, etc. They were practically non-existent in our diets until the early 1900s when new chemical processes allowed them to be extracted.