CMC Medical CMC-Medical VELLORE Solved Paper-2010

  • question_answer
    Maximum basic in gas phase is

    A)  \[N{{H}_{3}}\]

    B)  \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]

    C)  \[{{(C{{H}_{3}}C{{H}_{2}})}_{2}}NH\]

    D) \[{{(C{{H}_{3}}C{{H}_{2}})}_{3}}N\]

    E)  None of these

    Correct Answer: D

    Solution :

                    In the gas phase, the basicity order is \[3{}^\circ \text{-}\]amine > \[2{}^\circ \text{-}\]amine> \[1{}^\circ \text{-}\]amine > ammonia. Hence,\[{{(C{{H}_{3}}C{{H}_{2}})}_{3}}N\]is maximum basic in gas phase.  


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