RAJASTHAN PMT Rajasthan - PMT Solved Paper-2004

  • question_answer
    Which of the following is the strongest base?

    A)  \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]

    B)  \[{{(C{{H}_{3}})}_{3}}N\]

    C)  \[{{(C{{H}_{3}})}_{2}}NH\]

    D)  \[C{{H}_{3}}N{{H}_{2}}\]

    Correct Answer: A

    Solution :

    The order of basicity of amines is: \[{{2}^{o}}\text{ }amines>{{3}^{o}}\text{ }amines>{{1}^{o}}\text{ }amines\] Among dimethyl amine and diethyl amine, the later is more basic because \[-{{C}_{2}}{{H}_{5}}\]group has more \[+I\] effect than \[-C{{H}_{3}}\]group.


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