You can find all WJEC Chemistry Unit 4 past papers and mark schemes below:
Combined MS – Unit 4 WJEC Chemistry A-level
January 2010 MS – Unit 4 WJEC Chemistry A-level
January 2010 QP – Unit 4 WJEC Chemistry A-level
January 2011 MS – Unit 4 WJEC Chemistry A-level
January 2011 QP – Unit 4 WJEC Chemistry A-level
January 2012 MS – Unit 4 WJEC Chemistry A-level
January 2012 QP – Unit 4 WJEC Chemistry A-level
January 2013 MS – Unit 4 WJEC Chemistry A-level
January 2013 QP – Unit 4 WJEC Chemistry A-level
January 2014 MS – Unit 4 WJEC Chemistry A-level
January 2014 QP – Unit 4 WJEC Chemistry A-level
June 2010 MS – Unit 4 WJEC Chemistry A-level
June 2010 QP – Unit 4 WJEC Chemistry A-level
June 2011 MS – Unit 4 WJEC Chemistry A-level
June 2011 QP – Unit 4 WJEC Chemistry A-level
June 2012 MS – Unit 4 WJEC Chemistry A-level
June 2012 QP – Unit 4 WJEC Chemistry A-level
June 2013 MS – Unit 4 WJEC Chemistry A-level
June 2013 QP – Unit 4 WJEC Chemistry A-level
June 2014 MS – Unit 4 WJEC Chemistry A-level
June 2014 QP – Unit 4 WJEC Chemistry A-level
June 2015 MS – Unit 4 WJEC Chemistry A-level
June 2015 QP – Unit 4 WJEC Chemistry A-level
June 2016 MS – Unit 4 WJEC Chemistry A-level
June 2016 QP – Unit 4 WJEC Chemistry A-level