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Which of the following reactions of gluc...

Which of the following reactions of glucose can be explained only by its cyclic structure?

A

Glucose forms pentaacetate

B

Glucose reacts with hydroxylamine to form an oxime

C

Pentaacetate of glucose does not react with hydroxylamine

D

Glucose is oxidised by nitric acid to gluconic acid

Text Solution

Verified by Experts

The correct Answer is:
C
Due to absence of free OH group at `C_1`, cyclic structure of glucose pentacetate cannot revert to open chain aldehydic form and hence cannot form an oxime.
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PRADEEP-BIOMOLECULES -NCERT (EXEMPLAR PROBLEMS) (With answers, Hints And Solution) (Multiple Choice Questions-I )
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  2. Which of the following polymer is stored in the liver of animals ?

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  3. Sucrose (cane sugar) is a disaccharide. One molecule of sucrose on hyd...

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  4. Which of the following pairs represents anomers ?

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  5. Proteins are found to have two different types of secondary structures...

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  6. In disaccharides, if the reducing groups of monosaccharides, i.e., ald...

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  7. Which of the following acids is a vitamin?

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  8. Dinucleotide is obtained by joining two nucleotides together by phosph...

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  9. Nucleic acids are the polymers of

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  10. Which of the following statements is not true about glucose?

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  11. Each polypeptide in a protein has amino acids linked with each other i...

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  12. DNA and RNA contain four bases each. Which of the following bases in n...

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  13. Which of the following B group vitamins can be stored in our body?

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  14. Which of the following bases is not present in DNA

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  15. Three cyclic structure of monosaccharides are given below. Which of th...

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  16. Which of the following reactions of glucose can be explained only by i...

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  17. Which of them have D configuration ?

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  18. Structure of a disaccharide formed by glucose and fructose is given be...

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  19. Three structure are given below in which two glucose units are linked....

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