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JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Mock Test - The s-Block Elements

  • question_answer
    The decreasing order of the second ionization potentials of K, Ca and Ba is

    A) K>Ca>Ba        

    B) Ca>Ba>K

    C) Ba>K>Ca       

    D) K>Ba>Ca

    Correct Answer: A

    Solution :

    [a] \[{{K}^{+}}>C{{a}^{+}}>B{{a}^{+}}\] (IE decreases down the group)


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