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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 3

  • question_answer
    The decreasing order of basic character of \[{{K}_{2}}O,BaO,CaO\]and \[MgO\] is

    A) \[{{K}_{2}}O>BaO>CaO>MgO\]

    B) \[{{K}_{2}}O>CaO>BaO>MgO\]

    C) \[MgO>BaO>CaO>{{K}_{2}}O\]

    D) \[MgO>CaO>BaO>{{K}_{2}}O\]

    Correct Answer: A

    Solution :

    [a] : Alkali metal oxides are very much basic. Down the group in the alkaline earth metal series, [onisation potential decreases.


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