JCECE Engineering JCECE Engineering Solved Paper-2007

  • question_answer
    The set representing the correct order for first ionisation potential is

    A) \[K>Na>Li\]                       

    B) \[Be>Mg>Ca\]

    C) \[B>C>N\]                          

    D)  \[Ge>Si>C\]

    Correct Answer: B

    Solution :

    The \[IP\] decreases in a group on moving downward because atomic radius increases hence the correct order is:                 \[Be>Mg>Ca\]


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