Cambridge IGCSE · 分析與預測
2024 Cambridge IGCSE Chemistry (0620) Past Paper 分析與預測
A comprehensive analysis of the May/June 2024 Cambridge IGCSE Chemistry (0620) examination series, covering core and extended multiple choice, theoretical papers, and practical assessments.
更新: 2026年6月13日
難度 2.8/5
總分
160
時間
180 分鐘
最高頻課題
—
分卷
卷二 選擇題 (Extended): 40 分 · 45 分鐘Paper 4 Theory (Extended): 80 分 · 75 分鐘Paper 6 Alternative to Practical: 40 分 · 60 分鐘
考官重點
官方報告整理常見失分位
- In empirical calculations, dividing raw percentage values directly by the smallest value instead of finding molar ratios first.
- Omitting state symbols when writing balanced equations for precipitation reactions.
常見誤解
- Confusing basic oxides with acidic oxides, or failing to recognize zinc oxide as amphoteric.
- Identifying simple molecular substances as having ionic bonding due to misunderstandings of electronegativity differences.
失分原因
- Failing to specify the correct oxidation states for transition metals in qualitative analysis names.
- Leaving empirical formulas in fractional ratio forms (e.g., C1H2.5 instead of C2H5).
- Neglecting to mention repeating experimental steps to achieve a constant mass in gravimetric water loss questions.
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