Cambridge IGCSE · 分析与预测

2024 Cambridge IGCSE Chemistry (0620) 历年真题分析与预测

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

分析模拟试题
难度 2.8/5
总分
160
时间
180 分钟
最高频考点
—

分卷

卷二 選擇題 (Extended): 40 分 · 45 分钟Paper 4 Theory (Extended): 80 分 · 75 分钟Paper 6 Alternative to Practical: 40 分 · 60 分钟

考官重点

官方报告整理

常见失分点

  • 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.

常见误区

  • 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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