Question
The reaction of glucose with acetic Anhydride, confirms the
MHT CET
Chemistry
Biomolecules
2026
MHT CET 2026 (11 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. straight chain structure of glucose
- B. presence of carbonyl group
- C. presence of keto group
- D. presence of five hydroxyl group
Answer
D. presence of five hydroxyl group
Step-by-step solution
Glucose reacts with acetic anhydride to form glucose pentaacetate. The formation of the pentaacetate derivative indicates that there are five hydroxyl (- OH ) groups present in a molecule of glucose. Since glucose is a stable compound, these five hydroxyl groups must be attached to five different carbon atoms. Answer: presence of five hydroxyl group
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