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JEE Main & Advanced Chemistry Biomolecules / जैव-अणु Question Bank Mock Test - Biomolecules

  • question_answer
    Which of the following pairs give positive Tollen's test?

    A) Glucose, sucrose

    B) Glucose, fructose

    C) Hexanal, acetophenone

    D) Fructose, sucrose

    Correct Answer: B

    Solution :

    [b] Glucose contains aldehyde group, positive Tollen's test. Fructose although contains ketone group, undergoes a rearrangement to form glucose and mannose which then responds to Tollen's test.


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