物质鉴别题早在以前的“3+2”高考中就是一道热点题型 ,已多年不见。可是在 2 0 0 4年理综高考 (江西等省区 )Ⅱ卷中却以大题的形式出现。本文就物质鉴别题给大家介绍几种常规解法。一、表格法所谓表格法就是把题中所给的未知物两两配伍 ,将反应所得结果用一种符号表示在相应的 The material identification problem was a hot topic in the previous “3+2” college entrance examination and has not been seen for many years. However, in the 2006 college entrance examination (Jiangxi and other provinces and autonomous regions) II, it appeared in the form of big questions. This article will introduce several general solutions to the material identification questions. First, the table method The so-called table method is to combine the unknowns given in the question with each other, and the result of the reaction is represented by a symbol in the corresponding