1 GCSE Chemistry resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter GCSE SubjectClear filter Chemistry Exam board OCR TopicClear filter C4 Testing for anions Resources Crossword Flashcards Multi-tool Quizsearch C4 GCSE OCR Gateway (9-1): Testing for anions GCSE, Chemistry 15 flashcards Search again