Describe how paper chromatography is used to separate mixtures of soluble coloured substances using a suitable solvent
Interpret simple chromatograms to identify
(a) unknown substances by comparison with known substances
(b) pure and impure substances
Describe how paper chromatogrphy is used to seperate mixtures of soluble colourless substances, using a suitable solvent and a locating agent. Knowledge of a specific locating agent is not needed