JEE Main & Advanced AIEEE Solved Paper-2010

  • question_answer
    The correct order of increasing basicity of the given conjugate bases\[(R=C{{H}_{3}})\]is       AIEEE  Solved  Paper-2010

    A) \[RCO\overline{O}<HC\equiv \overline{C}<\overline{N}{{H}_{2}}<\overline{R}\]

    B) \[RCO\overline{O}<HC\equiv \overline{C}<\overline{R}<\overline{N}{{H}_{2}}\]

    C) \[\overline{R}<HC\equiv \overline{C}<RCO\overline{O}<\overline{N}{{H}_{2}}\]

    D) \[RCO\overline{O}<\overline{N}{{H}_{2}}<HC\equiv \overline{C}<\overline{R}\]

    Correct Answer: A

    Solution :

    Confugated acid \[RCOOH\,\,\,CH\equiv CH\]      \[N{{H}_{3}}\]   \[R-H\] Order to A.S. \[\Rightarrow RCOOH>CH=CH>N{{H}_{3}}>R-H\] Order to B.S. \[\Rightarrow RCO{{O}^{-}}<CH\equiv {{C}^{-}}<\overline{N{{H}_{2}}}<{{R}^{-}}\]


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