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AIIMS AIIMS Solved Paper-2008

  • question_answer
    The beta and alpha glucose have different specific rotations. When either is dissolved in water, their rotation changes until the same fixed value results. This is called

    A)  epimerisation    

    B)         racemization

    C)         anomerisation   

    D)        mutarotation

    Correct Answer: D

    Solution :

    The \[{{p}_{1}}>{{p}_{2}}>{{p}_{3}}\] and \[{{p}_{2}}>{{p}_{3}}>{{p}_{1}}\]-glucose have different rotations. When either is dissolved in water, their rotation changes until the same fixed values results. This is called mutarotation. \[{{p}_{2}}>{{p}_{1}}>{{p}_{3}}\]                            \[\Delta G-ve,\Delta H+ve\]


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