Question:medium
Furanose ring of fructose is formed due to reaction between :
Furanose ring of fructose is formed due to reaction between :
Show Hint
In sugars, furanose rings are five-membered rings, formed when the hydroxyl group on C5 reacts with the carbonyl group on C1.
Updated On: Jan 14, 2026
- C1 and C4
- C2 and C5
- C1 and C5
- C2 and C4
Show Solution
The Correct Option is C
Solution and Explanation
In fructose's furanose form, the C1 aldehyde group reacts with the C5 hydroxyl group, creating a five-membered ring. This cyclic hemiacetal formation yields the furanose structure of fructose.
Was this answer helpful?
0
Top Questions on Carbohydrates
- Given below are two statements:
Statement I: Sucrose is dextrorotatory. However, sucrose upon hydrolysis gives a solution having mixture of products. This solution shows laevorotation.
Statement II: Hydrolysis of sucrose gives glucose and fructose. Since the laevorotation of glucose is more than the dextrorotation of fructose, the resulting solution becomes laevorotatory.
In the light of the above statements, choose the correct answer from the options given below.- JEE Main - 2026
- Chemistry
- Carbohydrates
- Assertion (A): Glucose gets oxidized to six carbon gluconic acid on reaction with bromine water. Reason (R): The carbonyl group is absent in the open chain structure of glucose. Choose the correct option:
- CBSE Class XII - 2026
- Chemistry
- Carbohydrates
- Which of the following reactions is not explained by the open chain structure of glucose?
- CBSE Class XII - 2026
- Chemistry
- Carbohydrates
- Statement-I: Sucrose is dextrorotatory and upon hydrolysis, it becomes laevorotatory. Statement-II: Sucrose on hydrolysis gives glucose and fructose such that the laevorotation of glucose is more than dextrorotation of fructose. Which of the following is correct?
- JEE Main - 2026
- Chemistry
- Carbohydrates
- Want to practice more? Try solving extra ecology questions todayView All Questions
