IB Chemistry SL Grade Boundaries (N24) 2025: Complete Breakdown (Timezone 0)

Paper Three (out of 35)

• Grade 7: 23–35
• Grade 6: 20–22
• Grade 5: 16–19
• Grade 4: 13–15
• Grade 3: 9–12
• Grade 2: 5–8
• Grade 1: 0–4

Practical Work (out of 24)

• Grade 7: 20–24
• Grade 6: 17–19
• Grade 5: 14–16
• Grade 4: 11–13
• Grade 3: 7–10
• Grade 2: 4–6
• Grade 1: 0–3

Final IB Chemistry SL Grade Boundaries (out of 100)

• Grade 7: 75–100
• Grade 6: 65–74
• Grade 5: 55–64
• Grade 4: 44–54
• Grade 3: 29–43
• Grade 2: 16–28
• Grade 1: 0–15

Tips for Scoring in the Top Grade Ranges

• Paper 1: Focus on mastering key concepts and practicing timed MCQs.
• Paper 2: Practice structured problem-solving and application questions.
• Paper 3: Develop skills in experimental design and data interpretation.
• Practical Work: Document procedures accurately and maintain lab precision.

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Frequently Asked Questions (FAQs)

1. Why are grade boundaries different for each paper?

Each assessment tests distinct skills—MCQs, structured problem-solving, and practical work. Boundaries reflect the varying difficulty levels.

2. How is the final grade calculated?

All components are weighted to form a final score out of 100. Balanced performance across all components is key for achieving a 7.

3. Which component is typically the most challenging?

Paper Two and Paper Three often challenge students due to complex problem-solving and application of concepts, while Practical Work requires precision and consistency.

Conclusion

Success in IB Chemistry SL depends on concept mastery, practical skills, and exam strategy. Understanding the exact grade boundaries allows students to focus study efforts strategically and aim for top marks.

RevisionDojo helps students maximize results with high-quality resources and targeted strategies.

Grade Boundaries at a Glance (IB Chemistry SL 2025, Timezone 0)

Paper 1 (MCQ, 29)
7: 22–29 | 6: 20–21 | 5: 17–19 | 4: 14–16 | 3: 11–13 | 2: 8–10 | 1: 0–7

Paper 2 (50)
7: 40–50 | 6: 35–39 | 5: 30–34 | 4: 25–29 | 3: 15–24 | 2: 8–14 | 1: 0–7

Paper 3 (35)
7: 23–35 | 6: 20–22 | 5: 16–19 | 4: 13–15 | 3: 9–12 | 2: 5–8 | 1: 0–4

Practical Work (24)
7: 20–24 | 6: 17–19 | 5: 14–16 | 4: 11–13 | 3: 7–10 | 2: 4–6 | 1: 0–3

Final Grade (100)
7: 75–100 | 6: 65–74 | 5: 55–64 | 4: 44–54 | 3: 29–43 | 2: 16–28 | 1: 0–15

Learn why the mole allows chemists to connect atomic-scale particles to measurable quantities used in real experiments.