RAJASTHAN PMT Rajasthan - PMT Solved Paper-1997

  • question_answer
    The correct order of the basicity of amines is (JR= ethyl)

    A)  \[N{{H}_{3}}>RN{{H}_{2}}>{{R}_{2}}NH>{{R}_{3}}N\]

    B)                         \[RN{{H}_{2}}>N{{H}_{3}}>{{R}_{2}}NH>{{R}_{3}}N\]

    C)                         \[{{R}_{2}}NH>{{R}_{3}}N>RN{{H}_{2}}>N{{H}_{3}}\]

    D)                         \[{{R}_{2}}NH>RN{{H}_{2}}>{{R}_{3}}N>N{{H}_{3}}\]

    Correct Answer: D

    Solution :

    \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH>{{({{C}_{2}}{{H}_{5}})}_{3}}\overset{\centerdot \centerdot }{\mathop{N}}\,>{{C}_{2}}{{H}_{5}}\overset{\centerdot \centerdot }{\mathop{N}}\,{{H}_{2}}>\overset{\centerdot \centerdot }{\mathop{N}}\,{{H}_{3}}\] Alkyl amine is strong base than ammonia.


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