Mixed past paper questions on these topics from OCR A which are readily available on past paper finder (still suitable for use for those studying other exam boards). Suitable for AS students. #periodicity #periodictable

Mixed past paper questions on this topic (infra-red, mass spectrometry and elemental analysis) from OCR A which are readily available on past paper finder (still suitable for use for those studying other exam boards). Suitable for AS students. #infrared #massspec #elementalanalysis

Mixed organic past paper questions from OCR A which are readily available on past paper finder (still suitable for use for those studying other exam boards). Suitable for both AS and A2 students. #organicchemistry #ASorganic