Atoms have a tendency to form chemical bonds with other atoms to get the Noble gas configuration. It provides stability to atoms. Compounds are the chemical species which are formed by chemical bonding of various atoms. Some common examples of compounds are HCl, HI etc.
The chemical compounds which are mainly composed of C and H atoms along with certain heteroatoms are called organic compounds. Hydrocarbons are one of the simplest and well known organic compounds. Inorganic compounds are mainly composed of non-metals excluding C. Although ionic compounds are also inorganic compounds only.
International Union of Pure and Applied Chemistry suggested certain rules for the naming of all known organic and inorganic compounds. The rules for naming of organic compounds are:
In the given compound, the longest chain contains 10 C atoms with 5 side chains bonded on the parent longest chain. The side chains must be written in alphabetic order along with their position as numeral value separated by comma.
In the naming of inorganic compounds; ionic and covalent compounds, the name of ionic compounds is combination of cation followed by name of anion with some suffix like –ide, -ate etc. In the naming of covalent compounds, the name of the element must be written with a prefix ( numbers of atoms).
Br^2O^3 must be Dibromine trioxide as there are two Br atoms and three oxide ions. Another example is MnSO4 that must be Manganese(II) sulfate. Since it is an ionic compound therefore no prefix of cation and anion must be added. Here Mn is a transition metal and can show variable valency therefore the oxidation state of Mn that is 2+ must be shown in parenthesis in Roman numeral.
Q. 1 What is the correct name of Cs^2SO^4?
(a) Cesium (I) sulphate
(b) Cesium (II) sulphate
(c) Dicesium sulphate
(d) Cesium sulphate
In the given formula, Cs is an alkali metal and S is non-metal therefore it must be an ionic compound so no oxidation number must be written in parenthesis. Thus, the name of the compound must be Cesium sulphate.
Q. 2 Write the IUPAC name of the given organic compound.
(a) 4-methylpentanoyl chloride
(b) 2-methylpentanoyl chloride
(c) 4-methylbutanoyl chloride
(d) 2-methylbutanoyl chloride
In the given stricture the longest chain has 5 C atoms with -COCl as functional group and one methyl group as side chain. The functional group must get the least number thus, it should be 4-methylpentanoyl chloride.
Q. 3 Identify the root word, primary suffix, secondary suffix and prefix in the given organic compound.
Take homework guidance from qualified solvers to get Chemistry assistance on the nomenclature of chemical compounds. We’ll instruct you on a whole lot of rules that are involved in this practice.
Whether you are in high school or a College-freshman, we’ll provide you step-by-step explanations as manuals for reference. If there is more than one functional group, prefixes like di, tri, tetra must be used to show their numbers bonded on the parent chain.
On the other hand, most covalent compounds without metals like carbon monoxide have two words in a name or a suffix. So you’ll have Carbon dioxide, carbon tetrachloride here.
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Let’s also examine why when it comes to complex compounds there are no particular set of guidelines. In fact, we’ll figure out why the trivial nomenclature system is limited and several other names can also exist for one specific compound.
So seek our top chemistry experts to solve worksheet questions or get detailed analysis on the longest chain rule; naming of different substituents and the lowest set of locants; etc.
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Take assistance to uncover the common name of compounds, citing examples and what nomenclature stands for in chemistry.
In case of binary covalent compounds the name of the first element in the compound is written first and then the name of the second element followed by suffix-ide. The prefix di, tri, tetra is used to indicate the number of an element in the compound. For example, is named sulfur tetrafluoride.
In case of ionic compounds, the name of cation is written first, and then the name of the anon followed by suffix –ide. The prefix di, tri, tetra is used to indicate the number of an element in the compound. is sodium chloride.
Binary covalent compounds can be named following 3 simple rules-
Ionic compounds are named using following rules
It's very important to follow rules while naming any chemical compound to have a specific single name for a certain compound that doesn't match with an already existing compound. This keeps the unique identity of different compounds with different properties.
is a covalent compound made up of one sulfur atom and four fluorine atoms.
The name of sulfur would be written first followed by the name of fluorine but –ine is replaced by –ide.
The prefix tetra- is used to indicate the four fluorine atoms.
The name of the compound is sulfur tetrafluoride.
is an ionic compound, made up of cation and anion.
The name of the cation is written first followed by the name of the anion.
The name of the compound is sodium chloride.