硝酸是三大强酸之一,也是一种强氧化剂,因为在硝酸分子中氮处于最高氧化态,同时硝酸又不稳定,易分解出NO_2和O_2,凡是有硝酸参加的反应,往往生成多种还原产物,其产物与硝酸的浓度有很大关系。硝酸能同金属、非金属、化合物等反应,均表现出氧化性,在最近几年的高考试题中也出过这方面的试题。例如:判断离子大量共存或者是根据硝酸的氧化性判断电子得失 Nitric acid is one of the three strong acids and is also a strong oxidant. Because nitrogen is in the highest oxidation state in nitric acid molecules and nitric acid is not stable at the same time, it is easy to decompose NO 2 and O 2. Any reaction with nitric acid often produces various kinds of reduction Products, their products and nitric acid concentration has a great relationship. Nitric acid with the metal, non-metallic, compounds and other reactions, all showed oxidation, in recent years, the college entrance examination exam has also been in this area questions. For example: to determine a large number of ions coexist or judged according to the oxidation of nitric acid gain and loss