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 $ -H $ and $ -OH $ 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.
