VMMC VMMC Medical Solved Paper-2005

  • question_answer
    By Wurtz reaction, a mixture of methyl iodide and ethyl iodide gives:

    A)  butane

    B)         ethane

    C)  propane

    D)  A mixture of the above three

    Correct Answer: D

    Solution :

    Methyl iodide and ethyl iodide, on treatment with sodium in ethereal solution, give a mixture of propane, ethane and butane, as follows \[C{{H}_{3}}-C{{H}_{2}}C{{H}_{3}}\]                                 \[\xrightarrow{\text{ether}}\underset{\text{propane}}{\mathop{C{{H}_{3}}}}\,.C{{H}_{2}}C{{H}_{3}}+2NaI\] \[C{{H}_{3}}I+2Na+I-C{{H}_{3}}\xrightarrow{{}}\]                                 \[\underset{\text{ethane}}{\mathop{C{{H}_{3}}}}\,-C{{H}_{3}}+2NaI\] \[{{C}_{2}}{{H}_{5}}I+2Na+I-{{C}_{2}}{{H}_{5}}\xrightarrow{{}}\] \[\underset{\text{butane}}{\mathop{{{C}_{2}}{{H}_{5}}-}}\,{{C}_{2}}{{H}_{5}}+2NaI\]


You need to login to perform this action.
You will be redirected in 3 sec spinner