Which of the following is not amphoteric oxide?
Correct answer: D. SO2
- A. ZnO
- B. Al2O3
- C. PbO
- D. SO2
Explanation
Amphoteric oxides can react with both acids and bases. ZnO, Al2O3, and PbO exhibit this property, making them amphoteric. However, SO2 does not react with bases in a way that would allow it to be categorized as amphoteric. SO2 is mainly an acidic oxide, which reacts with bases to form sulfites.
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Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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