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12 topics: 130 hours
Cambridge CAIE 0620
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Denotes significant gaps in understanding of key concepts within the topic.
Indicates a solid understanding of the topic, with some areas still requiring improvement.
Shows a strong command of the topic and exam-level readiness.
Learn how Cambridge IGCSE Chemistry (0620) is assessed across the IGCSE qualification.
Paper 1
Multiple Choice (Core)
Paper 2
Multiple Choice (Extended)
Paper 3
Theory (Core)
Paper 4
Theory (Extended)
Paper 5
Practical Test
Paper 6
Alternative to Practical
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Stoichiometry questions typically draw on mole calculations, balancing equations, and working out reacting masses or volumes, and they frequently combine with other topics like Acids, Bases and Salts or Electrochemistry in longer exam questions. The most common mark losses come from rounding errors or skipping units, so practising full written method alongside the final answer is essential, especially since Cambridge awards partial credit for correct working even when the final number is wrong.
It has up to 6 papers depending on tier and practical route. Core candidates sit Paper 1 (Multiple Choice) and Paper 3 (Theory), while Extended candidates sit Paper 2 (Multiple Choice) and Paper 4 (Theory). All candidates also complete either Paper 5 (Practical Test) or Paper 6 (Alternative to Practical).
Whether you sit Paper 5 (Practical Test) or Paper 6 (Alternative to Practical), the exam tests your ability to follow experimental procedures accurately, record results to the correct precision, and evaluate sources of error. Practising past practical-style questions and getting comfortable with command words like “describe” and “suggest” is the most reliable way to prepare, since these papers reward structured reasoning over memorised facts.
Organic Chemistry at IGCSE level is more introductory than its A Level counterpart, focusing on naming simple hydrocarbons, basic reactions, and an early look at polymers, but students often find it tricky simply because the naming conventions and structural drawing feel unfamiliar at first. Repeated practice drawing structures and naming compounds, rather than just memorising definitions, helps this topic click much faster.
The Freemium Plan provides limited access to Interactive Videos and Diagnostic Reports for introductory chapters only. The Premium Plan unlocks all 12 topics, including full access to Interactive Videos, downloadable Revision Notes, Diagnostic Reports for every chapter, and additional Tutor Credits to generate Testpapers or get feedback from a Subject Tutor.