Unit 12 · Experimental Techniques and Chemical Analysis
Question Bank
Cambridge IGCSE Chemistry 0620 · 59 questions
Q40Experimental Techniques and Chemical Analysis
In paper chromatography, the Rf value is calculated as:
(a)Distance moved by solvent ÷ distance moved by substance
(b)Time ÷ distance
(c)Distance moved by substance ÷ distance moved by solvent
(d)Solvent volume ÷ spot size
Correct answer: (c) Distance moved by substance ÷ distance moved by solvent
Related lesson
12.3 ChromatographyExperimental Techniques and Chemical Analysis Tags