Chemistry Notes Form 3 - Oxides of Nitrogen: Properties, Preparations, and UsesReview The Chemistry Notes Form 3 - Oxides of Nitrogen provides a comprehensive overview of the properties, laboratory preparations, and uses of various oxides of nitrogen. Nitrogen, belonging to the second period of Group V in the periodic table, forms five different oxides when combined with oxygen in different ratios. The document presents the oxides of nitrogen in a tabular form, including their names, formulas, oxidation states of nitrogen, and the ratio of nitrogen to oxygen. It explains that NO and N2O are neutral gases, while the other oxides are acidic. The guide also highlights that the oxides of NO and N2O are brownish gases, while NO and N2O are gases. The laboratory preparation methods for each oxide are described in detail. For example, nitric oxide (NO) is prepared by treating metallic copper with moderately concentrated nitric acid. The document provides the chemical equation for the reaction and explains the use of Wolfe's apparatus for collecting the gas. It also outlines the purification process using freshly prepared ferrous sulfate solution. The physical and chemical properties of each oxide are thoroughly explained. For instance, NO is not combustible but decomposes into N2 and O2 at high temperatures. The document also discusses the oxidizing and reducing properties of NO, as well as its reactions with other substances such as potassium permanganate and halogens. The Chemistry Notes Form 3 - Oxides of Nitrogen also covers nitrogen dioxide (NO2) and nitrous oxide (N2O) in detail. It provides information on their structures, laboratory preparations, physical properties, and chemical reactions. The uses of each oxide are highlighted, including the preparation of nitric acid and the use of nitrous oxide as a mild anaesthetic. Overall, this document serves as a comprehensive guide for students studying oxides of nitrogen in chemistry. It provides a clear understanding of the properties, laboratory preparations, and uses of these important compounds. With detailed explanations and examples, students can enhance their knowledge and excel in their chemistry studies.
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