设计实验要运用所学的化学知识和实验技能。独立设计实验方案,不仅可巩固和提高化学知识与实验技能,还可以培养分析问题解决问题的能力。然而,从近两年高考有关试题中,考生试卷中反映出来的问题却比较多,突出表现在设计实验,和仪器、试剂的选择上无从着手;对于明显的错误 Design experiments to use the chemical knowledge and experimental skills learned. Independent design of experimental programs can not only consolidate and improve chemical knowledge and experimental skills, but also develop the ability to analyze problems and solve problems. However, from the examination questions related to the college entrance examination in the past two years, the problems reflected in the examinee’s test papers are numerous, and the outstanding performance is in designing experiments, and the selection of instruments and reagents cannot be started; for obvious errors