AIIMS AIIMS Solved Paper-1999

  • question_answer
    The common molecular formula for disaccharide is

    A)  \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\]       

    B)         \[{{C}_{10}}{{H}_{18}}{{O}_{8}}\]            

    C)  \[{{C}_{10}}{{H}_{20}}{{O}_{10}}\]  

    D)  \[{{C}_{18}}{{H}_{22}}{{O}_{11}}\]

    Correct Answer: A

    Solution :

    Molecular formula for monosaccaride (e.g. glucose, fructose) is given by: \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]. Therefore, molecular formula for the disacchorides is \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\]. As \[2{{C}_{6}}{{H}_{12}}{{O}_{6}}\to {{C}_{12}}{{H}_{22}}{{O}_{11}}+{{H}_{2}}O\]


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