初中化学最后一题通常为实验探究题,在中考中所占比例重大,设计内容较广,对思维整合性的要求更高,而最后探究题涉及到酸碱盐的概率较高。比如2015年黄石的最后一道题涉及了钾盐的分析,2015年常州的最后探究题涉及了洁厕灵的成分分析包含离子鉴别猜想实验假设等步骤。这些探究题无论从篇幅上还是内容上会让考生感觉难 The last question of junior high school chemistry is usually the subject of experimental inquiry, which takes up a large proportion in the senior high school entrance examination, has a wide range of design contents, has a higher requirement for thinking integration, and has a higher probability of involving acid-base salts in the final inquiry. For example, in 2015, the final question of Yellowstone involved the analysis of potash. In 2015, the final exploration topic in Changzhou involved steps in the component analysis of the toilet-cleaning spirit, including the experimental assumptions of ion discrimination conjecture. These questions explore the candidates in terms of space or content