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Which of the following statements about ...

Which of the following statements about ribose is incorrect ?

A

It is a polyhydroxy ketone

B

It is an aldehyde sugar

C

It has five carbon atoms

D

It exhibits optical activity

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The correct Answer is:
A
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AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-2 (MONOSACCHARIDES)
  1. Match the following columns

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  2. The number of chiral centres in the cyclic hemiacetal form of Glucose ...

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  3. Which of the following statements about ribose is incorrect ?

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  4. Which one'of the following is the configu- ration standard for giving ...

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  5. The correct match is

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  6. When the monosaccharide is converted to D-glyceraldehyde, then which c...

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

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  8. D -Glucose shows mutarotation because,

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

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

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  11. Amylopectin is a polymer of

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

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

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

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

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

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

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

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  19. Which is incorrect statement ?

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

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