Grade 11 chemistry(compounds)

Name the following:

....................CH3
......................|
...................CH2
......................|
a) CH2-CH2-CH2-CH-CH2-CH3


b) CH2===CH-CH--CH2--CH3
.................|
...............CH2------CHs



..................O
..................||.......
c) CH3-CH2-C-CH2-CH3-CH3

a) The longest chain is six carbons. The side chain of two carbons is on the third carbon in the six carbon chain, therefore 3-ethyl-hexane

b) Although you can find a six carbon chain, the double bond takes precedence. It's between the first and second carbon on the five carbon chain. The side chain of two carbons is on the second carbon of the main chain, therefore 2-ethyl-1-pentene

c) The double bonded oxygen defines a ketone. It is on the third carbon of six, therefore
3-hexanone

a) 3-ethylhexane
b) 2-ethyl-1-pentene
c)3-hexanone