F.4 CHEM.

Certain foods have the ability to protect themselves from being damaged by oxidation. This is because these foods contain chemicals called “anti-oxidatants”, such as vitamins A, C and E. For example, lemons contain vitamin C that inhibits oxidation of apple slices. This can be verified by immersing a fresh apple slice in fresh lemon juice and then exposing it to air. The apple slice does not turn brown because of the anti-oxidizing property of vitamin C present in the lemon juice.


Do you think apples contain vitamin C? Why?