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प्रश्न
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
उत्तर
The reaction of glucose with hydrogen cyanide:
This reaction confirms the presence of the carbonyl group (>C = O) in glucose.
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संबंधित प्रश्न
What do you observe when glucose solution is heated with Tollen’s reagent?
Write the reactions involved when D-glucose is treated with the following reagent:
Br2 water
The following compound can be called as:
Acetylation of glucose yields ____________.
Which of the following properties of glucose cannot be explained by its open chain structure?
(i) Glucose does not form hydrogen sulphite with NaHSO3.
(ii) On oxidation with HNO3 glucose gives saccharic acid.
(iii) Glucose is found to exist in two different crystalline forms which are named as α and β.
Which one is correct?
Which of the following pairs represents anomers?
Account for the following:
What happens when D – glucose is treated with the following reagents
HNO3
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:
Give a reason for the following observations:
Penta-acetate of glucose does not react with hydroxylamine.
