卤族元素和氧族元素的有关知识依托于元素化合物,既可以考查化合物性质及其转化,又可以结合基本概念和理论、化学反应原理、化学实验等进行综合考查。此部分知识点较多,且相对零散,增加了复习的难度,如采用本文所介绍的主线复习法,则将使复习工作事半功倍。 The relevant knowledge of halogen elements and oxygen elements depends on elemental compounds, and can not only examine the properties of compounds and their transformation, but also combine basic concepts and theories, chemical reaction principles, and chemical experiments to conduct comprehensive examinations. This part of the knowledge is more and more fragmented, increasing the difficulty of review, such as using the main line review method introduced in this article will make the review work more effective.