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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2007

  • question_answer
    The ionization energy of \[L{{i}^{2+}}\] is equal to

    A)  \[9hcR\]                             

    B)  \[6hcR\]

    C)  \[2hcR\]                             

    D)  \[hcR\]

    Correct Answer: A

    Solution :

    lonization energy \[=Rch{{Z}^{2}}\]                 \[Z=3\] for \[L{{i}^{2+}}\] \[\therefore \] lonization energy \[={{(3)}^{2}}Rch\]                                 \[=9Rch\]


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