J & K CET Medical J & K - CET Medical Solved Paper-2007

  • question_answer
    Inversion of cane-sugar in dilute acid is a

    A)  bimolecular reaction

    B)  Pseudo-unimolecular reaction

    C)  unimolecular reaction

    D)  trimolecular reaction

    Correct Answer: B

    Solution :

    \[{{C}_{12}}{{H}_{22}}{{O}_{11}}+\underset{excess}{\mathop{{{H}_{2}}O}}\,\xrightarrow[{}]{dil.\,acid}\]\[\underset{glu\cos e}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,+\underset{fructose}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,\]When one of the reactant is present in large excess, the second-order reaction conforms to the   first order and   is   known   as pseudo-unimolecular reaction.


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