Experiment 2 Preparation of Paracetamol Experiment 6 Investigating the Properties of Buffers Experiment 7 The Reduction of Benzoin Experiment 9 Hydrolysis of tert-Butyl Chloride Experiment 11 Electrochemistry and EMF Experiment 13 Determination of the pKa of an Acid-base Indicator Classifying Reactions Stereochemistry of the Product Meso Compounds TLC in this Experiment Thin Layer Chromatography TLC Techniques Experiment 7 The Reduction of Benzoin Chromatography is a key technique for the separation and identification of chemical compounds. It forms the basis of some important instrumental analytical methods. Simple thin layer chromatography is still also widely used in organic chemistry.