气体的鉴别中值得注意的两个问题贵州省毕节市第二职业技术高级中学（５５１７００）宁晓燕在气体物质的鉴别中应注意以下两个问题：一．嗅试法不宜用对于气体的鉴别，普遍的方法可归纳为：一看二嗅三点四试（试纸或试剂），而嗅试法在具体的实验操作中不宜采用．因为，此... Two issues worthy of attention in the identification of gases Bijie City, Guizhou Province, the second vocational high school (551700) Ning Xiaoyan in the identification of gas substances should pay attention to the following two issues: one. The olfactory test method should not be used to identify the gas. The general method can be summarized as follows: a look at the two sniffing three-four test (test paper or reagent), and the olfactory test method should not be used in specific experimental operations. Because of this,...