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无机框图题是一种能将元素化合物知识、基础概念和基础理论、化学计算等知识有机结合起来的综合题型.它具有考查知识面广、思维容量大、题型多变等特点,能培养学生分析、观察、推理、应用的能力,多年来一直是高考中的热点题型.也因为其综合性,很多同学在做无机推断题时总是感到无从下手,其实,要解好无机框图题关键是利用好八把钥匙.第一把钥匙:颜色1.有色固体红色:Cu、Cu2O红棕色:Fe2O3红褐色:Fe(OH)3
Inorganic frame diagram is a comprehensive combination of knowledge of elemental compounds, basic concepts and basic theory, chemical calculation and other knowledge.It has the characteristics of a wide range of knowledge, Student analysis, observation, reasoning, the ability to apply for many years has been a hot topic in the college entrance examination. Because of its comprehensive, many students always feel inaccessible inorganic inference questions, in fact, The key is to make good use of eight keys The first key: Color 1. Colored solid red: Cu, Cu2O Reddish brown: Fe2O3 Reddish brown: Fe (OH) 3