Products from Oil
What is an Alcohol?
Alcohols are organic
molecules which form an homologous series
with the general formula CnH2n+1OH.
Alcohols (like hydrocarbons) are named
according to the number of carbon atoms in the molecule.
|Methanol, CH3OH, has n=1.||Butanol, C4H9OH, has n=4.|
|Ethanol, C2H5OH, has n=2.||Pentanol, C5H11OH, has n=5.|
|Propanol, C3H7OH, has n=3.||Hexanol, C6H13OH, has n=6.|
What is an Organic Molecule?
molecules contain carbon. The
are examples of organic molecules.
Just as alkanes are identified as saturated hydrocarbons,
and alkenes are identified by their double bond, so
alcohols are identified by having an O–H group in the molecule.
What is a Functional Group?
The group which identifies an organic molecule
and gives it
its chemical properties is called its functional group.
The O–H group is the functional group for alcohols.
Below are links to the
structural formulae of alcohols.
The structural formula is also called the displayed formula.
Propanol Butanol Pentanol
What is Cholesterol?
a complex steroid which is also an
Cholesterol is an essential substance which is
used to make cell membranes. Essential means that
you can't live without it. However, too much
cholesterol is bad for people and can cause heart disease.
Links Alcohols Revision Questions
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Copyright © 2013 Dr. Colin France. All Rights Reserved.