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JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Dipole moment

  • question_answer
    In a polar molecule, the ionic charge is \[4.8\times {{10}^{-10}}\] e.s.u. If the inter ionic distance is one Å unit, then the dipole moment is                                             [MH CET 2003]

    A)                 41.8 debye         

    B)                         4.18 debye

    C)                 4.8 debye           

    D)                 0.48 debye

    Correct Answer: C

    Solution :

               Given ionic charge \[=4.8\times {{10}^{-10}}\]e.s.u. and ionic distance \[=1A{}^\circ ={{10}^{-8}}cm\] we know that dipole moment = ionic charge × ionic distance                                     \[=4.8\times {{10}^{-10}}\times {{10}^{-8}}\]                                 \[=4.8\times {{10}^{-8}}\]e.s.u. per cm \[=4.8\]debye.


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