实验室制取氢气涉及到的知识点较多,不少同学记起来较费力且容易忘记,为了帮助同学们更好地理清思路、确定目标,笔者特对这一实验要点进行归类整理,以供同学们参考. There are many knowledge points involved in the preparation of hydrogen in the laboratory. Many students remember it more arduously and easily forgotten. In order to help students better understand the geography and determine the goals, the author specifically categorized this experimental point. For students reference.