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Question
Give a reason for the following observations:
Penta-acetate of glucose does not react with hydroxylamine.
Solution
Penta-acetate of glucose does not react with hydroxylamine (−OHNH2) because there is no free −CHO group present.
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RELATED QUESTIONS
Draw the simple Fisher projection formulae of D - (+) - glucose and D - (-) - fructose
Enumerate the reactions of D-glucose which cannot be explained by its open chain structure.
Write the reactions involved when D-glucose is treated with the following reagent:
Br2 water
Write the reactions involved when D-glucose is treated with the following reagent:
(CH3CO)2O
Glucose reacts with acetic anhydride to form ______.
The number of chiral carbons in ß-D(+) glucose is ____________.
What happens when D-glucose is treated with the following reagent?
HI
Match List - I with List - II.
| List I | List II | ||
| (A) | Glucose + HI | (I) | Gluconic acid |
| (B) | Glucose + Br2 water | (II) | Glucose pentacetate |
| (C) | Glucose + acetic anhydride | (III) | Saccharic acid |
| (D) | Glucose + HNO3 | (IV) | Hexane |
Choose the correct answer from the options given below:
When D-glucose reacts with HI, it forms ______.
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
