26题以氮的氧化物与氨气反应生成氮气为背景,考查了氨气制备实验的原理、实验装置的选择连接、氨气与二氧化氮反应实验的操作步骤、实验现象和原因。比较全面地考查了学生实验能力和文字表达能力。本题满分14分,平均分6.4分。分值分布如表1和图1所示。 In the background of the reaction between nitrogen oxides and ammonia to produce nitrogen, the principle of ammonia preparation experiment, the connection of experimental apparatus, the operation steps of ammonia and nitrogen dioxide reaction experiment, the experiment phenomenon and the reasons were investigated. A more comprehensive examination of the students experimental ability and writing skills. The full score 14 points, an average of 6.4 points. Score distribution as shown in Table 1 and Figure 1.