Alkanes And Alkenes Worksheet
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1
2Alkanes
a nd
A lkenes
W orksheet
How can we distinguish between alkanes and alkenes?
Aim:
To work out the best way to distinguish alkanes from alkenes.
1
Given below are the structures of four hydrocarbons:
A
B
C
D
Explain why all four compounds above are hydrocarbons.
..........................................................................................................................................................
..........................................................................................................................................................
2
Classify the compounds A to D as either alkanes or alkenes.
Compound
Molecular formula
Alkane or alkene?
A
B
C
D
3
The general formula for alkanes is C
H
.
n
2n+2
What is the general formula for alkenes? ……………………….
4
Classify the following compounds as either alkanes or alkenes:
E
C
H
alkane/alkene
3
8
F
C
H
alkane/alkene
5
10
G
C
H
alkane/alkene
6
14
H
C
H
alkane/alkene
6
12
I
C
H
alkane/alkene
5
12
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