Abstract Addition reaction of ethylene with bromine is a very important reaction type in high school chemistry, and it is also a case of experiment inquiry in chemistry classroom teaching. This paper discussed the defects of experimental inspection schemes represented in various literature and proposed an improved experimental design, which was to test the acidity of the upper aqueous solution with pH paper, or to test the existence of Br- with the upper aqueous solution.
NIU Fu-Rong, WANG Jia-Guo. Experiment Improvement on Addition Reaction of Ethylene with Bromine[J]. Chinese Journal of Chemical Education, 2023, 44(11): 108-111.