Worksheetsalkane alkenes
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
2.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
3.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
4.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
5.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
6.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
7.
Hydrocarbons are compounds that contain
a)
Carbon, only
b)
Carbon and Hydrogen, only
c)
Carbon, Oxygen, and Hydrogen, only
d)
Carbon, Oxygen, Hydrogen, and Nitrogen, only
8.
General formula of Alkane is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
9.
Classify the compound based on the functional group present.
a)
alkane
b)
alkene
c)
alkyne
d)
aromatic
10.
Which of the following shows the structure of ethene?
a)
b)
c)
d)
11.
Which of the following shows the structure of propene?
a)
b)
c)
d)
12.
Which homolgous series contains a C=C double bond?
a)
alkanes
b)
alkenes
c)
alcohols
d)
carboxylic acids
13.
Name the polymer formed from this monomer
a)
chloroethene
b)
chloroethane
c)
dichloroethene
d)
dichloroethane
14.
The boiling points and viscosity of alkane molecules increase as their molecular sizes increase.
a)
True
b)
False
15.
Both alkanes and alkenes react rapidly with aqueous bromine at room temperature.
a)
True
b)
False
16.
General formula of Alkene is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
17.
What liquid detects the presence of an alkene?
a)
Alkene water
b)
Bromine water
c)
Water
d)
Limewater
18.
When testing for alkenes (unsaturation) bromine water turns from...
a)
orange --> blue/black
b)
colourless --> pink
c)
orange --> colourless
d)
orange --> clear
19.
What term is given to a compound which contains atoms of carbon and hydrogen only?
a)
alkene
b)
hydrocarbon
c)
alkane
d)
saturated
20.
What term describes alkene molecules that contain a C=C double bond?
a)
saturated
b)
unsaturated
100 %
