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Reaction of Non-Metallic Oxides with Bases

Classify the ...

Question

Classify the following oxides into acidic, basic and amphoteric.
$C a O$ , $M g O$ , $C O_{2}$ , $S O_{3}$ , $N a_{2} O$ , $Z n O$ , $A l_{2} O_{3}$ , $F e_{2} O_{3}$

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Solution

Oxides are classified into acidic, basic, neutral and amphoteric oxides.

Basic oxides: $C a O$ , $M g O$ , $N a_{2} O$ , $F e_{2} O_{3}$
Acidic oxides: $C O_{2}$ , $S O_{3}$
Amphoteric oxides: $Z n O$ , $A l_{2} O_{3}$

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The total number of basic oxides in the given box is

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