Assignment :

1. What will be the result if a student performs the extraction steps of caffeine by dissolving tea in water instead of dichloromethane?
2. During the extraction process of Caffeine from tea, perform a thin layer chromatography with the top layer [ tea layer] and comment on the results observed?
3. What will happen if sodium sulfite is not added to the caffeine extract?
4. A student was confronted with the problem of tannin contamination while extracting caffeine from tea leaves. Can you suggest a possible solution for avoiding the problem ?