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YOUR A LEVELS
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Cambridge
E
Pearson Edexcel
AQA
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OCR
OCR
Competitive
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Subjects
C
Cambridge
E
Pearson Edexcel
AQA
AQA
OCR
OCR
Competitive
Log in
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AQA · A Level · 7405
Chemistry
Exam Guide
7405
CONQUER
Papers
Paper 1
Time
2h
Marks
105
Weight
35%
Paper 2
Time
2h
Marks
105
Weight
35%
Paper 3
Time
2h
Marks
90
Weight
30%
Specification · Version 1.2 July 2026
Grade boundaries
7405 · A Level
Weighted marks
June
Max
A*
A
B
C
D
E
Official source
2026
300
255
220
181
142
104
66
2025
300
239
197
162
127
93
59
2024
300
239
198
162
126
90
55
June
2026
2025
2024
Max
300
300
300
A*
255
239
239
A
220
197
198
B
181
162
162
C
142
127
126
D
104
93
90
E
66
59
55
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Chemistry
A Level · 7405
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