BCECE Medical BCECE Medical Solved Papers-2004

  • question_answer
    \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] reacts with hot and excess HI, then formed product is :

    A)  \[C{{H}_{3}}C{{H}_{2}}-I\] and \[C{{H}_{3}}C{{H}_{2}}OH\]

    B)  \[C{{H}_{2}}-C{{H}_{2}}-OH\]

    C)  \[C{{H}_{3}}-C{{H}_{2}}-I\]

    D)  none of the above

    Correct Answer: C

    Solution :

    Key Idea: Ether on reaction with excess of \[HI\]produce two molecules of alkyl halide \[\underset{\downarrow }{\mathop{\underset{diethyl\text{ }ether}{\mathop{C{{H}_{3}}-C{{H}_{2}}-}}\,O-C{{H}_{2}}-C{{H}_{3}}-2HI}}\,\]     1                     \[\underset{ethyl\text{ }iodide}{\mathop{2{{C}_{2}}{{H}_{5}}I}}\,\,\,+{{H}_{2}}O\] When equimolar quantities of ether and \[HI\]are present, then one molecule of alkyl halide and one molecule of alcohol are formed.


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