A GCSE Chemistry worksheet on Paper Chromatography. The worksheet is differentiated with exam questions targeting grades 1-3, 4-6 and 7-9. There’s questions on mobile and stationary phases, food additives, calculation of Rf values etc. The more challenging questions require students to think in more depth about the physical processes involved in the separation, explaining how separation occurs, how we use chromatography to identify additives etc. Answers are included.
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