12th Class Chemistry Biomolecules / जैव-अणु Question Bank MCQs - Biomolecules

  • question_answer
    Which of the following reactions could not be explained on the basis of open chain structure of glucose?

    A) Pentaacetate of glucose does not react with \[N{{H}_{2}}OH\].

    B) Glucose on prolonged heating with HI gives n-hexane.

    C) Glucose on oxidation with bromine water forms gluconic acid.

    D) With acetic anhydride glucose gives pentaacetate.

    Correct Answer: A

    Solution :

    Pentaacetate of glucose does not react with \[N{{H}_{2}}OH\] indicating absence of \[CHO\]group.


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