Join thousands of students who trust us to help them ace their exams!
Multiple Choice
Assuming a complete reaction with hydrogen gas, which of the following molecules would have the greatest increase in melting point?
A
B
C
D
0 Comments
Verified step by step guidance
1
Identify the molecules in each image. These are triglycerides, which consist of three fatty acid chains attached to a glycerol backbone.
Examine the degree of unsaturation in each fatty acid chain. Unsaturated fatty acids contain one or more double bonds, while saturated fatty acids have no double bonds.
Consider the effect of hydrogenation on these molecules. Hydrogenation converts double bonds to single bonds, increasing saturation.
Understand that increased saturation generally leads to higher melting points due to stronger van der Waals forces between the fatty acid chains.
Determine which molecule has the most double bonds initially, as hydrogenation will have the greatest impact on its melting point by converting these double bonds to single bonds.