Naming Inorganic Compounds; Some Simple Organic Compounds (Sections) The oxides of nitrogen are very important components in urban air pollution. Name each of the following compounds: (a) N? O, (b) NO, (c) NO? , (d) N? O? , (e) N? O? . 2? 2? 2? 5? 2? 4?
Solution : Step 1: Here, in this problem we have to write either the name or the chemical formulas for the binary molecular compounds given. So first let’s see what is a molecular compound and then see the rules to name the binary molecular compound and then we would name or write the chemical formula for the given compounds. Step 2: A molecular compound can be defined as a compound where the atoms share electrons through covalent bonds. It is also known as a covalent compound. Example : 1. Water, its molecular formula is : H 20 2. Ammonia is expressed in molecular formula as : NH 3 Rules for naming binary molecular compounds: 1. The names of elements which are present nearer to metals in the periodic table( farther to the left in the periodic table) are written first. An exception occurs when the binary compound contains oxygen and ha logens such as chlorine, bromine, or iodine (excep luorine) where oxygen is written at the end. 2. The name of the second element is given a suffix -ide. 3. Greek prefixes (refer to table shown below) are utilized to expresses the number of atoms of each element. But the prefix 'mono' is not utilized for first element. If the prefix is ending with 'a' or 'o' and if the second element starts with the same vowel 'a' or ' ' then the prefix is not used under these conditions.