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प्रश्न
Why does compound (A) given below not form an oxime?
(A)
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उत्तर
Glucose pentaacetate (structure A) does not have a free –OH group at C, and therefore, cannot be converted to the open chain form to give a free –CHO group and hence it does not form the oxime.
(Structure A)
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संबंधित प्रश्न
Enlist the properties of glucose that can not be explained on the basis of open chain structure of it
Glucose on reaction with HI gives n-hexane. What does it suggest about the structure of glucose?
Differentiable between the following:
Amylose and Amylopectin
Write the reaction involved when D-glucose is treated with the following reagent:
Br2 water
Write the reaction involved when D-glucose is treated with the following reagent:
(CH3CO)2O
The number of asymmetric carbon atom(s) below the figure is/are
Which of the following statements is incorrect regarding glucose?
Which one of the following compounds is different from the rest?
Glucose reacts with acetic anhydride to form ______.
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 is the least stable form of glucose?
A solution of D-glucose in water rotates the plane polarised light ____________.
The α-D glucose and β-D glucose differ from each other due to difference in carbon atom with respect to its ____________.
Three structures are given below in which two glucose units are linked. Which of these linkages between glucose units are between C1 and C4 and which linkages are between C1 and C6?
| (I) |  |
| (II) |  |
| (III) |  |
Assertion: D (+) – Glucose is dextrorotatory in nature.
Reason: ‘D’ represents its dextrorotatory nature.
Account for the following:
What happens when D – glucose is treated with the following reagents
Bromine water
Account for the following:
What happens when D – glucose is treated with the following reagents
HNO3
Glucose with excess of phenyl hydrazine forms ______.
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
