NEET Zoology Biomolecules Questions Solved

BOARD

Write such reactions and facts about glucose which cannot be explained by its open chain structure.  (2 marks)

Limitations of the open chain structure of glucose :

(i) Glucose does not form NaHSO3 addition product. Despite having aldehyde-ammonia group, it

     does not respond to 2, 4-DNP test and does not respond to Schiff's reagent test.

(ii) Glucose penta acetate does not react with NH2OH due to absence of aldehydic group.

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