J & K CET Engineering J and K - CET Engineering Solved Paper-2008

  • question_answer
    Which of the following alkenes gives only acetaldehyde on ozonolysis?

    A)  Ethene        

    B)  Propene

    C)  1-butene       

    D)  2-butene

    Correct Answer: D

    Solution :

     Ozonolysis involves the breaking of double bond and insertion of 0 atoms in place of double bond. Therefore, the structure of  alkene. is as \[{{H}_{3}}C-\underset{H}{\mathop{\underset{|}{\mathop{C}}\,}}\,==\underset{H}{\mathop{\underset{|}{\mathop{C}}\,}}\,-C{{H}_{3}}\] \[\underset{2-\text{butene}}{\mathop{{{H}_{3}}C-CH=CH-C{{H}_{3}}}}\,\]


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