Which saturated fatty acids have the correct name?
I. CH₃(CH₂) ₁₀COOH - stearic acid
II. CH₃(CH₂) ₁₄COOH - palmitic acid
III. CH₃(CH₂) ₁₆COOH - lauric acid
IV. CH₃(CH₂) ₁₈COOH - arachidic acid

Question

Quizplus · Accepted Answer

Stearic acid (I) has 18 carbon atoms with no double bonds, which makes it a saturated fatty acid. Palmitic acid (II) also has 16 carbon atoms and no double bonds, making it a saturated fatty acid. Lauric acid (III) has 12 carbon atoms and no double bonds, making it a saturated fatty acid. Arachidic acid (IV) has 20 carbon atoms and no double bonds, making it a saturated fatty acid. Therefore, the correct names of saturated fatty acids are II and IV, making the answer D.

Which Saturated Fatty Acids Have the Correct Name