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D -Glucose shows mutarotation because,...

D -Glucose shows mutarotation because,

A

it is dextrorotatory

B

it undergoes inter conversion between its pyranose structure and furanose structure

C

`alpha` and `beta(+)` Glucopyranose structures

D

it undergoes interconversion with D(-) fructose

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The correct Answer is:
C
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When alpha-D glucose is dissolved in water it undergoes a partial conversion to beta-D glucose to exhibit mutarotation. This conversion stops when 66.6% of glucose is in beta from K_(C) for the mutarotation alpha-D -glucose hArr beta - D- glucose, is

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AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-2 (MONOSACCHARIDES)
  1. When the monosaccharide is converted to D-glyceraldehyde, then which c...

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  2. The mixture of compounds formed when glucose undergoes reversible isom...

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  3. D -Glucose shows mutarotation because,

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  4. The end product (B) formed in the reaction sequence. Glucose underset(...

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  5. Glucose overset(H2O)underset("Enzyme") rarr C2H5OH + CO2 + Energy T...

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  6. Amylopectin is a polymer of

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  7. The total number of C atoms in beta- D fructofuranose are

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  8. Which one of the following has two alpha-D- Glucose units ?

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  9. Which of the following carbohydrates is the essential constituent of c...

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  10. Which of the following does not refer to the principle forms of carboh...

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  11. Which of the following does not represent a disaccharide ?

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  12. The two functional groups present in a typical carbohydrate are

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  13. Incorrect statements among the following (A) Sucrose is reducing sug...

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  14. Which is incorrect statement ?

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  15. On hydrolysis with dil. H2SO4, starch and cellulose give 'X' and 'Y'. ...

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  16. Which of the followng linkage holds the monosaccharide units in disacc...

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  17. Sucrose reacts with acetic anhydride to form

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  18. Consider the statements: I) Maltose is also known as malt sugar I...

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  19. The set of chemical reactions by which the various molecules of the ce...

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  20. Which one of the following has two alpha-D- Glucose units ?

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