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置换反应和取代反应都是指物质中组分互换的反应,即反应物中某一组分被另外一组分所替换从而形成新的物质的一类反应。置换反应这一名称多用在无机化学的反应中,而取代反应这一概念多出现在有机化学的反应中。鉴于习惯上两者有各自的使用范围,它们的定义也就有着明确的针对性和应用的局限性。我们通常指的置换反应是说一种单质和一种化合物相作用,生成一种新的单质和一种新的化合物的反应,取代反应一般指化合物中的一种原子或原子团被另外一种原子或原子团所替代的反应。显然,在这里取代反应和置换反应是有着
Replacement reactions and substitution reactions are reactions in which the components of a substance are exchanged, ie, a reaction in which one component of the reactant is replaced by another component to form a new substance. The name of substitution reaction is mostly used in the reaction of inorganic chemistry, and the concept of substitution reaction mostly appears in the reaction of organic chemistry. Given the customary use of the two, their definition also has a clear focus and application limitations. The displacement reaction we usually refer to is the reaction of a simple substance and a compound to produce a new single substance and a new compound. Substitution reaction generally means that an atom or atom group in a compound is replaced by another atom. Or a reaction that is replaced by an atomic group. Obviously, there are substitution reactions and displacement reactions here.