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

Paper Three (out of 45)

• Grade 7: 35–45
• Grade 6: 29–34
• Grade 5: 23–28
• Grade 4: 17–22
• Grade 3: 13–16
• Grade 2: 7–12
• Grade 1: 0–6

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 HL Grade Boundaries (out of 100)

• Grade 7: 77–100
• Grade 6: 64–76
• Grade 5: 52–63
• Grade 4: 40–51
• Grade 3: 27–39
• Grade 2: 16–26
• Grade 1: 0–15

Tips for Scoring in the Top Grade Ranges

• Paper 1: Focus on key concepts and practice timed MCQs.
• Paper 2: Master problem-solving and exam techniques for structured questions.
• Paper 3: Understand experimental design, data analysis, and application of knowledge.
• Practical Work: Show accuracy, consistency, and clear lab documentation.

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Frequently Asked Questions (FAQs)

1. Why are the grade boundaries different for each paper?

Each paper assesses different skills: multiple-choice, structured problem-solving, and experimental understanding. Boundaries reflect these variations.

2. How is the final grade calculated?

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

3. Which component is most challenging?

Many students find Paper Two or Paper Three challenging due to the depth of knowledge and application required. Practical Work also requires precision and consistency.

Conclusion

Success in IB Chemistry HL depends on thorough preparation, practical skills, and exam strategy. Knowing the exact grade boundaries allows students to plan their study effectively and target top marks.

RevisionDojo provides expert guidance, strategies, and practice material to help students maximize their scores.

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

Paper 1 (MCQ, 40)
7: 30–40 | 6: 26–29 | 5: 22–25 | 4: 18–21 | 3: 14–17 | 2: 11–13 | 1: 0–10

Paper 2 (90)
7: 69–90 | 6: 57–68 | 5: 46–56 | 4: 34–45 | 3: 22–33 | 2: 11–21 | 1: 0–10

Paper 3 (45)
7: 35–45 | 6: 29–34 | 5: 23–28 | 4: 17–22 | 3: 13–16 | 2: 7–12 | 1: 0–6

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: 77–100 | 6: 64–76 | 5: 52–63 | 4: 40–51 | 3: 27–39 | 2: 16–26 | 1: 0–15

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