What chemical change occurs when spreadable margarines are made from polyunsaturated oils?

Question

Quizplus · Accepted Answer

Spreadable margarines are made by hydrogenation of polyunsaturated oils, which involves forcing hydrogen gas into the oil under high pressure and temperature. During this process, some of the unsaturated fatty acids accept the hydrogen, converting them into saturated fatty acids, resulting in a semi-solid spreadable fat that is less likely to spoil than the original oil.

What Chemical Change Occurs When Spreadable Margarines Are Made from Polyunsaturated