Oxide Acidity Trend
Acidic character of period 3 oxides increases in which direction?
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About This Question
- Subject
- chemistry
- Chapter
- classification of elements and periodicity in properties
- Topic
- oxide acidity trend
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Left to right
- Periodic Trend: Across a period, the nature of oxides changes from basic to amphoteric to acidic.
- Period 3 Sequence:
- Metallic: Na2O, MgO (Strongly Basic to Basic).
- Amphoteric: Al2O3 (Reacts with both acids and bases).
- Semi-metal/Non-metal: SiO2 (Weakly Acidic).
- Non-metallic: P4O10, SO3, Cl2O7 (Acidic to Strongly Acidic).
- Conclusion: Acidic character increases from left to right.
This easy difficulty chemistry question is from the chapter classification of elements and periodicity in properties, covering the topic of oxide acidity trend. It appeared in the 2025 exam.
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