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Question

Which oxide of a group 15 element is the most acidic?

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Choose one · Correct answer highlighted

Explanation

Acidity of group 15 oxides increases with oxidation state and decreases down the group. N₂O₅ (N in +5) is the most acidic, forming HNO₃, unlike P₂O₅, As₂O₅, or Sb₂O₅.

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