JEE Main & Advanced JEE Main Paper (Held on 08-4-2019 Morning)

  • question_answer
    In the following compounds, the decreasing order of basic strength will be -                         [JEE Main 8-4-2019 Morning]

    A) \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>N{{H}_{3}}\]

    B) \[{{({{C}_{2}}{{H}_{5}})}_{2}}NH>N{{H}_{3}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]

    C) \[N{{H}_{3}}>{{C}_{2}}{{H}_{5}}N{{H}_{2}}>{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]

    D) \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}>N{{H}_{3}}>{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]

    Correct Answer: A

    Solution :

    Basic strength order \[\underset{{{2}^{o}}a\min e}{\mathop{{{(C{{H}_{3}}C{{H}_{2}})}_{2}}}}\,NH>\underset{{{1}^{o}}a\min e}{\mathop{C{{H}_{3}}C{{H}_{2}}}}\,N{{H}_{2}}>N{{H}_{3}}\] Correct option : (a)


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