Q.
Which set of terms correctly identifies the carbohydrate shown?
1. Pentose
2. Hexose
3. Aldose
4. Ketose
5. Pyranose
6. Furanose
Solution:
This compound contains five carbon atoms, so it is a pentose. Its first carbon contains and group. This suggests that it is an aldose (ie, contains aldehyde group). Since its structure is similar to furan (a heterocyclic compound), so it has furanose structure. Hence, this compound is a pentose, aldose and have furanose structure.
