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प्रश्न
Account for the following:
Glucose is a reducing sugar
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उत्तर
Glucose reduces Fehlings reagent
\[\begin{array}{cc}
\phantom{..}\ce{H}\phantom{...}\ce{O}\phantom{.........................}\ce{HO}\phantom{...}\ce{O}\phantom{...............}\\
\phantom{..}\backslash\phantom{..}//\phantom{............................}\backslash\phantom{..}//\phantom{..............}\\
\phantom{.}\ce{C}\phantom{...............................}\ce{C}\phantom{..............}\\
\phantom{..}|\phantom{................................}|\phantom{...............}\\
\phantom{.}\ce{H-C-OH}\phantom{.......................}\ce{H-C-OH}\phantom{............}\\
\phantom{......}|\phantom{................................}|\phantom{...................}\\
\phantom{.}\ce{HO-C-H + 2Cu^{2+} + 2H2O -> HO-C-H + Cu2O + 4H+}\\
\phantom{.}|\phantom{................................}|\phantom{..............}\\
\phantom{..}\ce{H-C-OH}\phantom{......................}\ce{H-C-OH}\phantom{.............}\\
\phantom{..}|\phantom{................................}|\phantom{...............}\\
\phantom{..}\ce{H-C-OH}\phantom{......................}\ce{H-C-OH}\phantom{.............}\\
\phantom{..}|\phantom{................................}|\phantom{...............}\\
\phantom{......}\ce{CH2OH}\phantom{.........................}\ce{CH2OH}\phantom{.............}
\end{array}\]
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संबंधित प्रश्न
Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain.
What are reducing sugars?
Classify the following into monosaccharides and disaccharides.
Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose
Glycosidic linkage is found between ____________.
Which of the following monosaccharide is pentose?
Three cyclic structures of monosaccharides are given below which of these are anomers.
| (I) |  |
| (II) |  |
| (III) |  |
Name the sugar present in milk. How many monosaccharide units are present in it? What are such oligosaccharides called?
Monosaccharides contain carbonyl group hence are classified, as aldose or ketose. The number of carbon atoms present in the monosaccharide molecule are also considered for classification. In which class of monosaccharide will you place fructose?
Which monosaccharide units are present in starch, cellulose and glucose and which linkages link these units?
Assertion: Deoxyribose, \[\ce{C5H10O4}\] is not a carbohydrate.
Reason: Carbohydrates are hydrates of carbon so compounds which follow \[\ce{C_x(H2O)_y}\] formula are carbohydrates.
