CHEM 212 Module 4 problem set SUMMER 2025 Portage learning

Question 1

pts


Is the following molecule an aldose or ketose? Briefly explain.




Your Answer:


I think its a ketose because of the C=O, on the third carbon



ketose. There is a C=O on the third carbon from the top.




Question 2

pts


Which carbon in erythrose would tell you if the monosaccharide is D or L? Give the
carbon’s number in your answer.



Your Answer:

, The one on carbon 3, which would be the penultimate carbon



On carbon number 3, which is the penultimate carbon.




Question 3

pts


Glucose and mannose are epimers. Name another epimer of glucose besides mannose.



Your Answer:


galactose



Galactose.




Question 4

pts


Is the following structure a D or L carbohydrate? Briefly explain.