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Q.

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
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Which of the following order represents the correct sequence of the increasing basic nature of the given oxides?