JEE Main & Advanced JEE Main Solved Paper-2014

  • question_answer
    Considering the basic strength of amines in aqueous solution, which one has the smallest \[\text{p}{{\text{K}}_{\text{b}}}\]value?   JEE Main  Solved  Paper-2014

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

    B) \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

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

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

    Correct Answer: C

    Solution :

    Less is the pKb value, more is the basic strength. Order of basic strength in aq. medium is \[{{(C{{H}_{3}})}_{2}}NH>C{{H}_{3}}N{{H}_{2}}>{{(C{{H}_{3}})}_{3}}N>{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]


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