Classify the following oxides into three types and name the types.

CaO, MgO, CO₂ , SO₃, Na₂O, ZnO, Al₂O₃ , Fe₂O₃

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Solution

Oxides are of three types :

1) Acidic Oxides: CO₂ (Carbon dioxide), SO₃ (Sulfur trioxide)

2) Basic Oxides: CaO (Calcium oxide), MgO (Magnesium oxide), Na₂O (Sodium oxide)

3) Amphoteric Oxides: ZnO (Zinc oxide), Al₂O₃(Aluminium oxide), Fe₂O₃(Ferric oxide)

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