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प्रश्न
Give a reason for the following observations:
Penta-acetate of glucose does not react with hydroxylamine.
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उत्तर
Penta-acetate of glucose does not react with hydroxylamine (−OHNH2) because there is no free −CHO group present.
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संबंधित प्रश्न
Draw the simple Fisher projection formulae of D - (+) - glucose and D - (-) - fructose
Write the product when D-glucose reacts with conc. HNO3.
Write the reaction involved when D-glucose is treated with the following reagent:
(CH3CO)2O
What is the most abundant organic compound on earth?
The letter D and L in carbohydrates represent ____________.
Account for the following:
What happens when D – glucose is treated with the following reagents
Bromine water
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:
The number of asymmetric carbon atoms in the glucose molecule in open and cyclic form is ______.
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
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:
