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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    Strength of acid increases with the attachment of group showing-J effect and decreases with the attachment of group showing +1 effect. Which of the following is correct sequence of basic strength in aqueous solution?

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

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

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

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

    Correct Answer: D

    Solution :

    Such order of basic strength is weighted result of these three factors. [a] Inductive effect          [b] Solvation effect [c] Steric hindrance


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