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JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Ionisation Energy

  • question_answer
    The set representing the correct order of first ionisation potential is   [IIT-JEE (Screening) 2001]

    A) \[K>Na>Li\]

    B) \[Be>Mg>Ca\]

    C) \[B>C>N\]

    D) \[Ge>Si>C\]

    Correct Answer: B

    Solution :

    1st I.P. decreases down the group.


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