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只允许使用一种试剂的鉴别题,是一种疏通知识网络,培养学生能力的较好题型。由于限定了只用一种试剂鉴定,因而解题难度较大。怎样才能迅速选择最佳试剂进行鉴别?下面我就这类题的常用试剂作一小结。
The identification question that only allows the use of one reagent is a better type of question that is to clear the knowledge network and cultivate students’ abilities. Due to the limitation of using only one reagent for identification, it is difficult to solve problems. How can I quickly select the best reagent for identification? Here’s a summary of common reagents for this type of question.