Alkanes

The ALKANES family contains SINGLE BONDS only.

Here is an example of an alkane.
Notice the carbon chain in RED, and that all the carbons have single bonds between them.
A chlorine atom is added in as well.

How do you name ALKANE compounds?

Step 1
Imagine that all the carbons form a road.
Then the road is 5 carbons long.
Now 5 carbons = PENT

Step 2
There are only SINGLE BONDS between the carbons.
Hence the family is ALKANE.

We combine PENT and ANE.
Hence the road name is PENTANE.

Step 3
Now imagine that the chlorine is someone’s house and you must give it an address.

Note that the chlorine is at carbon number 2.
We call it 2-chloro

We combine all the words into one big word!

Hence the name is:
2-chloropentane

Examples

Name the following. Answers at bottom.
1.

2.


Answers
1.
2-bromo-1,2-dichlorobutane

2.
2,3-dibromo-3-methylpentane


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