Use paper chromatography to separate and identify substances in a mixture
Master PAG C7: Chromatography with unlimited practice questions. Test your knowledge of method, variables, equipment, and more.
8 practice areas available
Describe the procedure step by step
Identify and explain variables
Name and justify equipment choices
Calculate and interpret data
Plot, analyse and interpret graphs
Identify sources of error
Suggest how to improve accuracy
Identify hazards and precautions
PAG C7: Chromatography is a required practical for OCR GCSE Chemistry. This practical use paper chromatography to separate and identify substances in a mixture
Students are expected to understand the method, identify and control variables, use appropriate equipment, analyse results, draw graphs, identify sources of error, suggest improvements, and consider safety precautions.
Questions on required practicals frequently appear in OCR GCSE Chemistry exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.
Continue practicing with these other required practicals
Qualitative analysis including flame tests, tests for gases, and identification of ions
Investigate energy changes in chemical reactions using calorimetry
Investigate the electrolysis of aqueous solutions and molten compounds
Prepare a pure, dry sample of a soluble salt by reaction of an acid with an insoluble base or carbonate
Having trouble connecting to our servers. Some features may be limited.