Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

28. Carbohydrates

Reducing Sugars

Organic Chemistry

28. Carbohydrates

Reducing Sugars

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Multiple Choice

Identify the following sugar as reducing sugars (RS) or non-reducing sugars (NS)

Reducing sugars

Non-reducing sugars

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Verified step by step guidance

Examine the structure of the sugar provided in the image. Identify the functional groups present, focusing on the presence of aldehyde or ketone groups.

Understand the concept of reducing sugars. Reducing sugars typically have a free aldehyde group or a free ketone group that can act as a reducing agent.

Look for the presence of a hemiacetal or hemiketal group in the sugar structure. These groups are indicative of reducing sugars.

In the image, identify if the sugar has a free aldehyde group or a free ketone group. If the sugar is in a cyclic form, check if the anomeric carbon is free or involved in a glycosidic bond.

Determine if the sugar is a reducing sugar or non-reducing sugar based on the presence or absence of a free aldehyde or ketone group. If the anomeric carbon is involved in a glycosidic bond, it is typically a non-reducing sugar.