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考测点导航检验即鉴定,是根据物质某一特性,用化学方法来确定它是不是这种物质或是否含有某种成分或某一物质的组成;鉴别是利用不同物质的特性,用化学方法或物理方法加以区别开来的操作。本节考点是常见气体的检验与鉴别;常见离子的鉴别;物质检验的方法与步骤。
The verification of navigation points in an examination site is the identification based on a specific property of a substance, which is chemically determined to determine whether it is a substance or whether it contains a component or a substance; identification is the use of the characteristics of different substances, using chemical methods. Or physical methods to distinguish between the operation. The test sites in this section are the tests and identification of common gases; the identification of common ions; the methods and procedures for material testing.