•
Periodic table, elements and physical chemistry: http://www.ocr.org.uk/Images/171721-...-materials.pdf
•
Synthesis and analytical technique: http://www.ocr.org.uk/Images/171722-...-materials.pdf
•
Unified Chemistry: http://www.ocr.org.uk/Images/171749-...-materials.pdf
•
Periodic table, elements and physical chemistry: http://www.ocr.org.uk/Images/471886-question-paper-unit-h432-01-periodic-table-elements-and-physical-chemistry.pdf
•
Synthesis and analytical technique http://www.ocr.org.uk/Images/471887-question-paper-unit-h432-02-synthesis-and-analytical-techniques.pdf