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JEE Main & Advanced AIEEE Solved Paper-2005

  • question_answer
    Electrolyte \[KCl\] \[KN{{O}_{3}}\] \[HCl\] \[NAOAc\] \[NaCl\]
    \[{{\Lambda }^{\infty }}\] \[(S\,c{{m}^{2}}\,mo{{l}^{-1}})\] 149.9 145.0 426.2 91.0 126.5
    Calculate\[{{\Lambda }^{\infty }}HOAc\]using appropriate molar conductances of the electrolytes listed above at infinite dilution in\[{{H}_{2}}O\]at\[25{}^\circ C\]     AIEEE  Solved  Paper-2005

    A) 217.5                    

    B) 390.7    

    C)        552.7    

    D)        517.2

    Correct Answer: B

    Solution :

    \[\Lambda _{AcOH}^{\infty }=\Lambda _{AcONa}^{\infty }+\Lambda _{HCl}^{\infty }-\Lambda _{NaCl}^{\infty }\] \[=91.0+426.2-126.5\] \[=390.7\]


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