General Science • ChemistryMedium
Which phenomenon explains why amphoteric oxides like aluminum oxide can react with both acids and bases?
A. They contain both covalent and ionic bonds simultaneously
B. They possess dual chemical character allowing them to act as both acid and base✓ Correct Answer
C. They undergo sublimation upon heating
D. They dissolve completely in organic solvents like benzene
💡 Solution & Explanation
Amphoteric oxides such as aluminum oxide and zinc oxide exhibit dual chemical properties, reacting with acids to form salt and water and with strong bases to form complex soluble salts. This behavior stems from the intermediate electronegativity difference between metal and oxygen atoms. Such oxides do not exhibit simple neutral behavior like carbon monoxide.
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