Consider the given oxides
$C O, N a_{2} O, A l_{2} O_{3}, M g O, C O_{2}, Z n O, S O_{2}$ The total number of basic oxides in the given box is

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Solution

The correct option is B 2
In general, the oxides of metals are basic and that of non-metals are acidic. Sodium (Na) and magnesium (Mg) are metals. Therefore, the oxides $N a_{2} O$ and MgO are basic in nature. Although aluminium (Al) and zinc (Zn) are also metals but their oxides $A l_{2} O_{3}$ and ZnO are amphoteric in nature.
Hence, the correct answer is option (b).

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Similar questions

C a O

M g O

C O_{2}

S O_{3}

N a_{2} O

Z n O

A l_{2} O_{3}

F e_{2} O_{3}

A l_{2} O_{3}

M g O

C u O

N a_{2} O

C u O, N a_{2} O, M g O, A l_{2} O_{3}

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