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प्रश्न
Answer the following question.
What is the basic structural difference between glucose and fructose?
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उत्तर
Both Glucose and Fructose are hexose sugars with six carbon atoms but Glucose is an aldohexose and fructose is ketohexose which means the functional group present in glucose is an aldehyde and the functional group in fructose is a ketone.
\[\begin{array}{cc}
\phantom{..}\ce{O}\phantom{..}\ce{H}\phantom{.}\ce{OH}\phantom{.}\ce{OH}\phantom{}\\
\phantom{}||\phantom{...}|\phantom{...}|\phantom{...}|\phantom{.}\\
\ce{CH2OH-C-C-C-C-CH2OH}\\
\phantom{....}|\phantom{...}|\phantom{...}|\phantom{}\\
\phantom{....}\ce{HO}\phantom{..}\ce{H}\phantom{..}\ce{H}\phantom{..}\\
\text{D-fructose}
\end{array}\]
\[\begin{array}{cc}
\phantom{}\ce{OH}\phantom{..}\ce{H}\phantom{.}\ce{OH}\phantom{.}\ce{OH}\phantom{....}\\
\phantom{.}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{....}\\
\ce{CHO-C-C-C-C-CH2OH}\\
\phantom{}|\phantom{...}|\phantom{...}|\phantom{...}|\phantom{...}\\
\phantom{}\ce{H}\phantom{.}\ce{HO}\phantom{.}\ce{H}\phantom{..}\ce{H}\phantom{..}\\
\text{D-glucose}
\end{array}\]
संबंधित प्रश्न
The following compound can be called as:
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.
The reaction of glucose with red P + HI is called ____________.
The number of chiral carbons in ß-D(+) glucose is ____________.
Which one is correct?
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) |  |
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:
Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?
