J & K CET Medical J & K - CET Medical Solved Paper-2013

  • question_answer
    Idenitfy Z in the following sequence \[C{{H}_{3}}C{{H}_{2}}I\xrightarrow[{}]{KCN}X\xrightarrow[{}]{{{H}_{3}}{{O}^{+}}/{{H}_{2}}O}Y\] \[\xrightarrow[\Delta ]{{{H}_{3}}{{O}^{+}}/{{H}_{2}}O}Z\]

    A)  \[C{{H}_{3}}COCl\]        

    B)  \[C{{H}_{3}}CON{{H}_{2}}\]

    C)  \[C{{H}_{3}}COOH\]       

    D)  \[C{{H}_{3}}C{{H}_{2}}COOH\]

    Correct Answer: D

    Solution :

     \[C{{H}_{3}}C{{H}_{2}}l\xrightarrow[-KI]{KCN}C{{H}_{3}}C{{H}_{2}}CN\xrightarrow[{}]{{{H}_{2}}{{O}^{+}}/{{H}_{2}}O}\] \[C{{H}_{3}}C{{H}_{2}}CHO\xrightarrow[{}]{{{H}_{3}}{{O}^{+}}/{{H}_{2}}O}\underset{propanoic\,acid}{\mathop{C{{H}_{3}}C{{H}_{2}}COOH}}\,\]


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