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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Conductor and Conductance

  • question_answer
    In infinite dilutions, the equivalent conductances of \[B{{a}^{2+}}\] and \[C{{l}^{-}}\] are 127 and 76 \[oh{{m}^{-1}}c{{m}^{-1}}\] \[eqv{{t}^{-1}}\]. The equivalent conductivity of \[BaC{{l}_{2}}\]at indefinite dilution is [CBSE 2000]

    A)                 101.5    

    B)                 139.5

    C)                 203.5    

    D)                 279.5

    Correct Answer: B

    Solution :

               \[{{\lambda }^{\,\infty }}\,BaC{{l}_{2}}=\frac{1}{2}{{\lambda }^{\,\,\infty }}B{{a}^{2+}}+\lambda {{\,}^{\infty }}C{{l}^{-}}\]                                 \[=\frac{127}{2}+76=139.5\,\,oh{{m}^{-1}}\,\,c{{m}^{-1}}\,e{{q}^{-1}}\].


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