Home

Home
Common Compounds
Exam Guide
FAQ
Features
Glossary
Companion Notes
Just Ask Antoine!
Resources
Slide Index
Toolbox
Tutorial Index
Options
Tips

FAQ
Introduction
Measurement
Matter
Atoms & ions
Compounds
Chemical change
The mole
Gases
Energy & change
The quantum theory
Electrons in atoms
The periodic table
Chemical bonds
Solids
Liquids
Solutions
Acids & bases
Redox reactions
Reaction rates
Organic chemistry
Everyday chemistry
Inorganic chemistry
Environmental chemistry
Laboratory
History of chemistry
Miscellaneous


Home :FAQ :Introduction to organic chemistryPrint | Comment | Contact
Previous Question Next Question

What is an alkyl group?

How many carbons are in methyl, ethyl, propyl and butyl? Is methyl the same as methane...?

Vocabulary
alkane*
alkyl group*
hydrocarbon*
An alkyl group is a piece of a molecule with the general formula CnH2n+1, where n is some integer. For example, a methyl group (CH3) is a fragment of a methane molecule (CH4); n = 1 in this case. The -yl ending means "a fragment of an alkane formed by removing a hydrogen".
AlkaneFormulaAlkyl groupFormula
methane CH4 methyl group -CH3
ethane CH3CH3 ethyl group -CH2CH3
propane CH3CH2CH3 n-propyl group -CH2CH2CH3
butane CH3CH2CH2CH3 n-butyl group -CH2CH2CH2CH3

Author: Fred Senese senese@antoine.frostburg.edu

Sign up for a free monthly
newsletter describing updates,
new features, and changes
on this site.
Details


General Chemistry Online! What is an alkyl group?

Copyright © 1997-2001 by Fred Senese
Comments & questions to senese@antoine.frostburg.edu
Last Revised 02/23/18.URL: http://antoine.frostburg.edu/chem/senese/101-hidden/organic/faq/yl-ending.shtml