Count carbon double bonds and explain how saturation affects melting points and the properties of fats and oils.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2024–2026.
Three model fatty acids have equal carbon-chain lengths but differ in saturation or double-bond geometry. Which structure best explains the high melting point of X? A. Several cis carbon–carbon double bonds interrupt its chain B. Its carbon chain contains no…
Two purified triglyceride mixtures have fatty acid chains of similar length. Mixture X contains many cis double bonds and melts below mixture Y. Which explanation is consistent with this result? A. The double bonds make X a polymer of glycerol B. Kinks in the…
State the type of fatty acid represented by the lower chain Z.
A mixed triglyceride contains both saturated and unsaturated fatty-acid residues. Which set of the displayed molecules could occur among its complete hydrolysis products? A. M, N and O B. K, L and M C. L and O only D. N alone
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