You can find all WJEC (Wales) Chemistry A-Level Unit 4 past papers and mark schemes below:
- Data Booklet - WJEC Chemistry A-level
- June 2017 MS - Unit 4 WJEC Chemistry A-Level
- June 2017 QP - Unit 4 WJEC Chemistry A-Level
- June 2018 MS - Unit 4 WJEC Chemistry A-Level
- June 2018 QP - Unit 4 WJEC Chemistry A-Level
- June 2019 MS - Unit 4 WJEC Chemistry A-Level
- June 2019 QP - Unit 4 WJEC Chemistry A-Level
- Specimen MS - Unit 4 WJEC Chemistry A-Level
- Specimen QP - Unit 4 WJEC Chemistry A-Level