NEET Sample Paper NEET Sample Test Paper-18

  • question_answer
    Arrange the following in increasing order of their basic strength:\[C{{H}_{3}}N{{H}_{2}}(I),{{(C{{H}_{3}})}_{2}}NH(II),\]\[{{(C{{H}_{3}})}_{3}}N\]\[(III),\,{{C}_{6}}{{H}_{5}}C{{H}_{2}}N{{H}_{2}}(IV)\]

    A) \[IV<III<I<II\]

    B) \[IV<III<II<I\]

    C) \[IV<III<II<I\]

    D) \[I<II<III<IV\]  

    Correct Answer: A

    Solution :

    The basic strength depends not only upon the electron releasing effect of substituent on nitrogen but also upon steric effect and hydration effect. So, the order is IV < III < I < II. Hence, the correct option is [a].


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