J & K CET Engineering J and K - CET Engineering Solved Paper-2009

  • question_answer
    Among the following, the alkene on ozonolysis giving rise to only one aldehyde as the product is

    A)  1-butene

    B)  propone

    C)  2-butene

    D)  a-methyl-prop-1-ene

    Correct Answer: C

    Solution :

     Only symmetrical alkenes upon ozonolysis give one product. Among the given alkenes, only \[2-\]butene is a symmetrical alkene and undergoes ozonolysis in the following manner: \[C{{H}_{3}}CH=CHC{{H}_{3}}\xrightarrow{{{O}_{3}}/{{H}_{2}}{{O}_{2}}}\underset{\begin{smallmatrix}  \text{acetaldehyde} \\  (aldehyde) \end{smallmatrix}}{\mathop{2C{{H}_{3}}CHO}}\,\]


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