Paper chromatography experiments tell us a lot about the samples they are used to analyse. It is the best tool to use when we need to determine whether or not a sample is a mixture or a pure substance.
Analyse the following paper chromatography experiment results:
http://prntscr.com/f5adp9
For each sample, A-E, indicate whether it is a pure substance or a mixture. Provide a reason why you made each choice.
Please fix the following input errors: