物质推断题是指依据题中给定的条件,联系化学基本概念和原理、元素化合物的性质、化学实验现象以及化学计算等知识,通过分析、推理、判断某种物质的名称或在给定的范围内判断某种物质是否存在的一种试题,是初中化学试题中常见但却十分重要的一类题型。该类题目考查知识面广、变化多端、思维量大、综合性强,是考查学生求异思维、发散思维、抽象思维及逻辑推理能力的一类好题。解题时往往需要从题目中挖出一些明显或隐 Material inference questions are based on the conditions given in the title, contact the basic concepts and principles of chemistry, the nature of the chemical compounds, chemical experiments and chemical calculations and other knowledge, through the analysis, reasoning, to determine the name of a substance or in a given An examination of the existence of a substance within the scope of the test question is a common but very important type of questions in junior high school chemistry. This kind of subject examination has a wide range of knowledge, varied, large amount of thinking, and comprehensiveness. It is a good class of questions for examining students’ abilities to seek differences of thinking, divergent thinking, abstract thinking and logical reasoning. Problem solving often need to dig some obvious or hidden from the title