Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

Cracking of Crude Oil
· Crude oil is useless as fuel as the chemicals in it
are very thick (viscous).
· The molecules (carbon chains) are very long and
they get tangled. Long carbon chains are broken
into smaller pieces in a process called Cracking.
· Smaller chains are made which are good as
fuels.
· Ethene (an unsaturated alkEne) is also produced
which is good for plastics.
· .Remember how it done in the lab.…read more

Slide 3

Preview of page 3

Here's a taster:

Alkenes
· Are carbon chains which contain carbon to
carbon double bonds (C=C).
Single covalent bond C C
Double covalent bond C C
· The smallest is ethene…read more

Slide 4

Preview of page 4

Here's a taster:

ETHENE
Ethene can
decolourise bromine
and iodine water.
Any unsaturated
hydrocarbon can do
this.
Carbon to carbon double bond means it is an
unsaturated hydrocarbon.…read more

Slide 5

Preview of page 5

Here's a taster:

Alkenes - homologous series
· Alkenes differ only in the number of CH2 groups.
· This leads to a homologous series with the
general formula Cn H2n
Alkenes
n= 1 n=2 n=3 n=4
hydrogen
none = = =
carbon…read more

Slide 6

Preview of page 6

Here's a taster:

Activity
· Displayed formula for propene (prop.. means 3
carbons) and butene (but.. means 4 C's) are
shown.
· Draw a displayed structure for pentene.
H H H H H H
H H C
C H C H C H
C C H H C H H C H
C C H C C H
H H H H H H…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »