Give systematic (IUPAC) name for the following compound H3C-Cl
The Correct Answer and Explanation is:
The systematic (IUPAC) name for the compound H3C-Cl is chloromethane.
Explanation:
This compound is composed of two parts: methyl and chlorine.
- Methyl Group (CH₃): This is a simple alkyl group derived from methane (CH₄) by removing one hydrogen atom. When one hydrogen is replaced by another group, such as a halogen, it becomes a methyl group (CH₃). The name “methyl” comes from “methane,” which is the simplest alkane (a saturated hydrocarbon).
- Chlorine (Cl): Chlorine is a halogen, and when attached to an alkyl group, it forms a haloalkane (also known as alkyl halide). In this case, chlorine is attached to the methyl group.
Naming Process:
- The parent hydrocarbon is methane (CH₄), as it has only one carbon atom.
- The halogen attached is chlorine (Cl), so it is called chloromethane. The “chloro” prefix indicates the presence of chlorine, and “methane” is the parent name indicating one carbon atom in the molecule.
- The IUPAC naming convention follows the rule of replacing the hydrogen atom in the parent hydrocarbon (methane) with the appropriate halogen, which in this case is chlorine.
General Structure of Haloalkanes:
Haloalkanes are named based on the alkane parent chain with the halogen substituent. If more than one halogen is present, their positions on the carbon chain are indicated by numbers. In this case, there is only one carbon atom and one halogen, making it a simple compound, and no position number is required.
Thus, chloromethane is the correct systematic name for H3C-Cl according to IUPAC nomenclature.
