Which statement about the oxides of Period 3 is correct?
Answer and explanation
Correct answer: B. Sulfur trioxide reacts with water to form sulfuric acid
- Step 1: Non-metal oxides tend to be acidic: . Answer: Sulfur trioxide reacts with water to form sulfuric acid. Why not the others: sodium oxide forms NaOH (strongly alkaline); aluminium oxide is amphoteric and insoluble; magnesium oxide forms weakly alkaline Mg(OH)2.
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