etüülrühm
Etüülrühm is the Estonian term for the ethyl group, a functional group in organic chemistry. It is derived from ethane by removing one hydrogen atom. Its chemical formula is represented as -CH2CH3 or Et. The ethyl group is an alkyl group, meaning it consists solely of carbon and hydrogen atoms arranged in a chain. It is a common substituent found in many organic molecules. For example, ethanol, a widely used alcohol, has the chemical formula CH3CH2OH, where the ethyl group is attached to the hydroxyl group. Similarly, diethyl ether, an anesthetic, consists of two ethyl groups linked by an oxygen atom. The ethyl group is nonpolar due to the similar electronegativity of carbon and hydrogen atoms. Its presence in a molecule can influence properties such as solubility, boiling point, and reactivity. In chemical nomenclature, the prefix "etüül-" is used to denote the presence of an ethyl group.