Punjab Medical Punjab - MET Solved Paper-2011

  • question_answer
    The carbohydrate that will yield glucose and fructose on homogeneous catalytic hydrolysis in presence of dilute sulphuric acid is

    A)  cellulose            

    B)  maltose

    C)  starch                                  

    D)  sucrose

    Correct Answer: D

    Solution :

    Sucrose is a disaccharide and yields one molecule each of glucose and fructose on hydrolysis. \[\underset{\text{sucrose}}{\mathop{{{C}_{12}}{{H}_{22}}{{O}_{11}}}}\,+{{H}_{2}}O\xrightarrow{{}}\underset{\text{glucose}}{\mathop{{{C}_{6}}{{H}_{2}}{{O}_{6}}}}\,+\underset{\text{fructose}}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,\]


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