1.

Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?

A. \[A{{l}_{2}}{{O}_{3}}<MgO<N{{a}_{2}}O<{{K}_{2}}O\]
B.  \[Mg\,O\]\[<{{K}_{2}}O\]\[<\]\[A{{I}_{2}}{{O}_{3}}\]\[<N{{a}_{2}}O\]
C.  \[N{{a}_{2}}O\]\[<{{K}_{2}}O\]\[<MgO\]\[<\]\[A{{I}_{2}}{{O}_{3}}\]
D.  \[{{K}_{2}}O\]\[<N{{a}_{2}}O\]\[<\]\[A{{I}_{2}}{{O}_{3}}\]\[<MgO\]
Answer» B.  \[Mg\,O\]\[<{{K}_{2}}O\]\[<\]\[A{{I}_{2}}{{O}_{3}}\]\[<N{{a}_{2}}O\]


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