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Pearson Edexcel International A Level

Chemistry YCH11 past papers 2025

13 question papers from May/June and January 2025, every variant with its mark scheme and official grade boundaries. Open any paper in Study Drive, free and with no sign-up.

May/June 2025 7 papers

PaperCodesGrade boundariesOpen in Study Drive
Unit 1ASStructure, Bonding and Introducttion to Organic ChemistryWCH11/01
wch11-01-que-20250508
out of 80 · A 64 · B 56 · C 48 · D 40 · E 33PaperPaper + mark scheme
Unit 2ASEnergetics, Group Chemistry, Halogenoalkanes and AlcoholWCH12/01
wch12-01-que-20250513
out of 80 · A 60 · B 52 · C 44 · D 36 · E 29PaperPaper + mark scheme
Unit 3ASPractical Skills in Chemistry IWCH13/01
wch13-01-que-20250524
out of 50 · A 36 · B 31 · C 27 · D 23 · E 19PaperPaper + mark scheme
Unit 4A2Rates, Equilibria and Further Organic ChemistryWCH14/01
wch14-01-que-20250529
out of 90 · A* 81 · A 72 · B 63 · C 54 · D 46 · E 38PaperPaper + mark scheme
Unit 5A2Transition Metals and Organic Nitrogen ChemistryWCH15/01
wch15-01-que-20250603
out of 90 · A* 73 · A 66 · B 59 · C 52 · D 45 · E 39PaperPaper + mark scheme
Unit 5 · A paperA2Transition Metals and Organic Nitrogen ChemistryWCH15/01A
wch15-01a-que-20250603
out of 90 · A* 73 · A 66 · B 59 · C 52 · D 45 · E 39PaperPaper + mark scheme
Unit 6A2Practical Skills in Chemistry IIWCH16/01
wch16-01-que-20250614
out of 50 · A* 39 · A 35 · B 31 · C 27 · D 24 · E 21PaperPaper + mark scheme

January 2025 6 papers

PaperCodesGrade boundariesOpen in Study Drive
Unit 1ASStructure, Bonding and Introducttion to Organic ChemistryWCH11/01
wch11-01-que-20250110
out of 80 · A 52 · B 45 · C 38 · D 32 · E 26PaperPaper + mark scheme
Unit 2ASEnergetics, Group Chemistry, Halogenoalkanes and AlcoholWCH12/01
wch12-01-que-20250115
out of 80 · A 53 · B 45 · C 37 · D 30 · E 23PaperPaper + mark scheme
Unit 3ASPractical Skills in Chemistry IWCH13/01
wch13-01-que-20250124
out of 50 · A 32 · B 27 · C 23 · D 19 · E 15PaperPaper + mark scheme
Unit 4A2Rates, Equilibria and Further Organic ChemistryWCH14/01
wch14-01-que-20250109
out of 90 · A* 73 · A 66 · B 59 · C 52 · D 45 · E 39PaperPaper + mark scheme
Unit 5A2Transition Metals and Organic Nitrogen ChemistryWCH15/01
wch15-01-que-20250118
out of 90 · A* 71 · A 65 · B 59 · C 53 · D 47 · E 42PaperPaper + mark scheme
Unit 6A2Practical Skills in Chemistry IIWCH16/01
wch16-01-que-20250123
out of 50 · A* 35 · A 30 · B 25 · C 20 · D 16 · E 12PaperPaper + mark scheme