Which of the following oxides would form two different types of acids when dissolved in...

Chemistry

WAEC 2025

Which of the following oxides would form two different types of acids when dissolved in water?

A. CO\(_2\)
B. NO\(_2\)
C. SO\(_2\)
D. SO\(_3\)

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Correct Answer: Option B

Explanation

Nitrogen dioxide (NO\(_2\)) is unique because it undergoes a disproportionation reaction when dissolved in water. In this reaction, the nitrogen atom (which has an oxidation state of +4 in NO\(_2\) ) is both oxidized and reduced simultaneously, resulting in the formation of two distinct acids;

2NO\(_2\) + H\(_2\)O → HNO\(_2\) + HNO\(_3\)

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