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Question

Which of the following is the most basic oxide?

A
N2O
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B
MgO
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C
Na2O
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D
FeO
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Solution

The correct option is C Na2O
The oxides of metals are basic in nature whereas, the oxides of non-metals are acidic in nature.
As the metallic character decreases from left to right across the periodic table, the basic nature of their oxides will also decrease. Therefore, alkali metal oxides are more basic than the other group oxides.
Hence, Na2O is the most basic.

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