Which of the following order represents the correct sequence of the increasing basic nature of the given oxides?
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a
MgO < K2O < Al2O3 < Na2O
b
Na2O < K2O < MgO < Al2O3
c
K2O < Na2O < Al2O3 < MgO
d
Al2O3 < MgO < Na2O < K2O
answer is D.
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Detailed Solution
Electro negativity of central atom ∝Acidic strength of oxideElectro positivity of central atom ∝Basic strength of oxideThe basic strength order of given oxides isAl2O3 < MgO < Na2O < K2O