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Worksheetshydrocarbons
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
How many carbon atoms are in methane?
a)
1
b)
2
c)
3
d)
4
2.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
3.
How many carbon atoms are in propane?
a)
1
b)
2
c)
3
d)
4
4.
Hydrocarbons are compounds that contain
a)
Carbon and Nitrogen
b)
Carbon and Hydrogen
c)
Carbon, and Oxygen
d)
Carbon, Oxygen, and Hydrogen
5.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
6.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
7.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
8.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
9.
Alkenes are:
a)
saturated, because they do not have the maximum number of hydrogen atoms
b)
unsaturated, because they do not have the maximum number of hydrogen atoms
c)
unsaturated, because they have the maximum number of hydrogen atoms
d)
aromatic compounds
10.
Which of the following is unsaturated hydrocarbon ?
a)
propane
b)
propene
c)
propanol
d)
propanoic acid
11.
A compound consists of carbon and hydrogen elements only. It also contains a carbon-carbon double bond. This compound is known as
a)
saturated organic compound
b)
unsaturated organic compound
c)
saturated hydrocarbon
d)
unsaturated hydrocarbon
12.
Alkanes molecules are held together by
a)
weak Van der Walls forces of attraction
b)
weak Van der Waals forces of attraction
c)
strong covalent bonds
d)
strong intermolecualr forces
13.
Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.
a)
True
b)
False
14.
The boiling points and viscosity of alkane molecules increase as their molecular sizes increase.
a)
True
b)
False
15.
The first member of the alkene series is methene.
a)
True
b)
False
16.
Both alkanes and alkenes react rapidly with aqueous bromine at room temperature.
a)
True
b)
False
17.
General formula of Alkene is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
18.
General formula of Alkane is
a)
CnH2n+2
b)
CnH2n
c)
CnH2n+1OH
d)
CnH2n+1COOH
19.
What liquid detects the presence of an alkene?
a)
Alkene water
b)
Bromine water
c)
Water
d)
Limewater
20.
When testing for alkenes (unsaturation) bromine water turns from...
a)
orange --> blue/black
b)
colourless --> pink
c)
orange --> colourless
d)
orange --> clear
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