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Manipal Medical Manipal Medical Solved Paper-2011

  • question_answer
    The electron affinity of halogens are\[F=322,\] \[Cl=349,\text{ }Br=324,l=295\text{ }kJ\text{ mo}{{\text{l}}^{-1}}\]. The higher value for\[Cl\]as compared to that of F is due to

    A)  weaker electron-electron repulsion in \[Cl\]

    B)  higher atomic radius of F

    C)  smaller electronegativity of F

    D)  more vacant p-subshell in \[Cl\]

    Correct Answer: A

    Solution :

     Electron affinity value of\[Cl\]is higher than that of F as\[Cl\]belongs to 3rd period while F belongs to 2nd period. In\[Cl,\]electron-electron repulsion forces are weaker than that of F.


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