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प्रश्न
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
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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 happens when glucose is treated with hydroxylamine?
What do you observe when glucose is treated with bromine water?
The symbols D and L represents ____________.
A solution of D-glucose in water rotates the plane polarised light ____________.
Which of the following pairs represents anomers?
Why does compound (A) given below not form an oxime?
(A)
How will you distinguish 1° and 2° hydroxyl groups present in glucose? Explain with reactions.
On the basis of which evidences D-glucose was assigned the following structure?
\[\begin{array}{cc}
\ce{CHO}\\
|\phantom{....}\\
\phantom{..}\ce{(CHOH)4}\\
|\phantom{....}\\
\phantom{..}\ce{CH2OH}
\end{array}\]
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.
