NEET Zoology Biomolecules Questions Solved

BOARD

Enumerate the reactions of glucose which cannot be explained by its open chain structures.   (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 give 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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