Compared with a saturated fat with the same number of carbon atoms, a monounsaturated fat will contain:
A) one more hydrogen atom.
B) two more hydrogen atoms.
C) one fewer hydrogen atom.
D) two fewer hydrogen atoms.
E) three more hydrogen atoms.

Question

Quizplus · Accepted Answer

Monounsaturated fats contain one double bond in the fatty acid chain with all of the remainder carbon atoms being single-bonded. Therefore, compared to a saturated fat, which has no double bonds and is fully saturated with hydrogen atoms, a monounsaturated fat will have two fewer hydrogen atoms. This is because the formation of a double bond requires the removal of two hydrogen atoms.

Compared with a Saturated Fat with the Same Number of Carbon