Which of the following oxides is most basic?

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Question

(A) The basic character of oxides increases as we move down a group and decreases as we move from left to right across a period in the periodic table.

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$Na_2O$

Vedclass · Answer

(A) The basic character of oxides increases as we move down a group and decreases as we move from left to right across a period in the periodic table.$Na_2O$ is an oxide of an alkali metal (Group $1$),which is highly basic.$Al_2O_3$ is amphoteric.$SiO_2$ and $SO_2$ are acidic oxides.Therefore,$Na_2O$ is the most basic oxide among the given options.

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