电化学原理是高中化学课程中重要的基础理论之一,纵观历年高考理综化学试题,电化学知识既可以在选择题中单独命题,也可以在综合题中单独命题,还可以与氧化还原反应和化学反应中的能量变化结合起来综合命题。试题通常结合生活实际,以图文并茂的形式呈现,是高考的重点、难点和热点。从平时教学及答卷情况看,多数考生认为此类问题较 Electrochemical principle is one of the important basic theory in high school chemistry course. Throughout the college entrance examination science comprehensive examination questions, electrochemical knowledge can not only separate the proposition in the multiple choice questions, but also in the comprehensive title proposition alone, but also with the redox Reactions and changes in the energy of chemical reactions combine propositions. Test questions are usually combined with the actual life, presented in the form of illustrations, is the focus of the college entrance examination, difficulties and hot spots. Judging from the usual situation of teaching and answering questionnaires, most candidates think that such problems are more serious