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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?
Differentiable between the following:
Amylose and Amylopectin
Which of the following statements is incorrect regarding glucose?
The reaction of glucose with red P + HI is called ____________.
The two forms of D-glucopyranose obtained from the solution of D-glucose are called ____________.
Assertion: D (+) – Glucose is dextrorotatory in nature.
Reason: ‘D’ represents its dextrorotatory nature.
Write the reactions of D-glucose which can’t be explained by its open-chain structure. How can cyclic structure of glucose explain these reactions?
Consider the following reactions:
(i) \[\ce{Glucose + R-OH ->[Conc. HNO3] [A] ->[X eq of][(CH3CO)2O] Acetyl derivative}\]
(ii) \[\ce{Glucose ->[Ni/H2] [A] ->[Y eq of][(CH3CO)2O] Acetyl derivative}\]
(iii) \[\ce{Glucose ->[Z eq of][(CH3CO)2O] Acetyl derivative}\]
'X, 'Y' and 'Z' in these reactions are respectively:
Glucose with excess of phenyl hydrazine forms ______.
The reagents with which glucose does not react to give the corresponding tests/products are:
- Tollen’s reagent
- Schiff’s reagent
- HCN
- NH2OH
- NaHSO3
Choose the correct options from the given below:
