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

  • question_answer
    Which of the following pentoses will be optically active                 \[\begin{matrix}    CHO  \\    |  \\    HCOH  \\    |  \\    HOCH  \\    |  \\    HCOH  \\    |  \\    C{{H}_{2}}OH  \\    I  \\ \end{matrix}\]  \[\begin{matrix}    CHO  \\    |  \\    HCOH  \\    |  \\    HCOH  \\    |  \\    HOCH  \\    |  \\    C{{H}_{2}}OH  \\    II  \\ \end{matrix}\]  \[\begin{matrix}    CHO  \\    |  \\    HCOH  \\    |  \\    HCOH  \\    |  \\    HCOH  \\    |  \\    C{{H}_{2}}OH  \\    III  \\ \end{matrix}\] [MP PET 1994]

    A)                 All          

    B)                 II and III

    C)                 I              

    D)                 II

    Correct Answer: A

    Solution :

                    All are optically active.


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