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NEET Chemistry
QUESTION #7395
Question 1
The most basic oxide among the following is:
Correct Answer Explanation
Metallic character and basicity of oxides:
Basic character of oxides increases with metallic character. In group 15: N₂O₃ (acidic) → P₄O₆ (acidic) → As₂O₃ (weakly acidic/amphoteric) → Sb₂O₃ (amphoteric) → Bi₂O₃ (basic).
Bi is the most metallic of the group 15 elements. SeO₂ and Al₂O₃ are amphoteric. Bi₂O₃ is the most basic oxide listed.
Basic character of oxides increases with metallic character. In group 15: N₂O₃ (acidic) → P₄O₆ (acidic) → As₂O₃ (weakly acidic/amphoteric) → Sb₂O₃ (amphoteric) → Bi₂O₃ (basic).
Bi is the most metallic of the group 15 elements. SeO₂ and Al₂O₃ are amphoteric. Bi₂O₃ is the most basic oxide listed.
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