Final answer:
Oils can become acidic when exposed to oxygen due to a process called autoxidation that leads to the formation of organic acids. hence the answer to the question is true.
Step-by-step explanation:
The statement that oils tend to become acidic when exposed to oxygen is true. This happens because the chemical compounds in oils, particularly unsaturated fats, can undergo a reaction known as autoxidation when they come in contact with oxygen. Autoxidation is a free radical process that often leads to the formation of peroxides, which can further break down into a variety of compounds, including organic acids.
Therefore, the exposure of oils to oxygen can indeed result in increased acidity. hence the answer to the question is true.