JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkane

  • question_answer
    When ethyl iodide and propyl iodide react with Na in the presence of ether, they form [BHU 1997]

    A) One alkane

    B) Two alkanes

    C) Four alkanes

    D) Three alkanes

    Correct Answer: D

    Solution :

               \[{{C}_{2}}{{H}_{5}}I+2Na+{{C}_{3}}{{H}_{7}}I\underset{\text{Ether}}{\mathop{\xrightarrow{\text{Dry}}}}\,\] \[\underset{\text{Pentane}}{\mathop{{{C}_{2}}{{H}_{5}}-{{C}_{3}}{{H}_{7}}}}\,+2NaI\]  \[{{C}_{2}}{{H}_{5}}I+2Na+{{C}_{2}}{{H}_{5}}I\underset{\text{Ether}}{\mathop{\xrightarrow{\text{Dry}}}}\,\underset{\text{Butane}}{\mathop{{{C}_{2}}{{H}_{5}}-{{C}_{2}}{{H}_{5}}}}\,+2NaI\] \[{{C}_{3}}{{H}_{7}}I+2Na+{{C}_{3}}{{H}_{7}}I\underset{Ether}{\mathop{\xrightarrow{Dry}}}\,\underset{\text{Hexane}}{\mathop{{{C}_{3}}{{H}_{7}}-{{C}_{3}}{{H}_{7}}}}\,+2NaI\]


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