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JEE Main & Advanced Sample Paper JEE Main Sample Paper-37

  • question_answer
    When an isolated gaseous cation \[{{X}^{+}}(g)\] is converted into\[{{X}^{-}}(g)\] anion, the amount of energy released is\[16.8eV\]. Calculate the electronegativity value of the atom X on Pauling's scale.

    A)  1                                

    B)  2

    C)  4                                

    D)  3

    Correct Answer: D

    Solution :

    \[{{X}^{+}}(g)\xrightarrow{{}}{{X}^{-}}(g);\]Energy \[=IE+IA=16.8eV\] \[E{{N}_{pauling}}=\frac{IA+EA}{5.6}=\frac{16.8}{5.6}=3\]


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