TEST2
Click on the correct answer
1
Man is facing an energy crisis. Things which can be done include:
1. saving energy as much as possible
2. making fossil fuel from elements in advanced chemical laboratory
3. developing alternative sources of energy other than fossil fuel
1 and 2
1 and 3
2 and 3
all the options
2
Which of the following is not a fossil fuel?
Natural gas
Coal
Charcoal
Petrol
3
Which of the following statements about coal is false?
The most plentiful fossil fuel is coal
Coal consists of carbon compounds
Coal has been known to human for thousands years
Coal was formed from the remains of plants and animals which died and were buried underground million years ago
4
What percentage of coal mined in the world today is burnt in the power stations to generate electricity?
10%
20%
70%
95%
5
What percentage of the world's energy needs today is supplied by petroleum?
10%
40%
80%
90%
6
Which of the following is not an alkene?
C
5
H
10
C
8
H
16
C
9
H
18
C
10
H
22
7
Which of the following molecular formula represents an alkanoic acid?
CH
4
O
C
2
H
6
O
2
CH
3
Br
C
2
H
4
O
2
8
Which of the following alkanol is most viscous?
C
2
H
5
OH
C
4
H
9
OH
C
6
H
13
OH
CH
3
OH
9
Which of the following is most abundant in the exhaust fumes of motor vehicles?
Sulphur dioxide
Carbon dioxide
Nitrogen dioxide
Nitrogen
10
How many hydrogen atoms are there in a molecule of 2-methylpropan-2-ol?
8
9
10
11
11
1
st
statement: Natural gas is non-renewable.
2
nd
statement: Natural gas cannot be recycled.
Both statements are true but the 2
nd
one is not a correct explanation of the 1
st
one.
Only one statement is true while the other is false.
Both statements are true and the 2
nd
one is a correct explanation of the 1
st
one.
Both statements are false.
12
1
st
statemen t: Coal causes little pollution when burn in open area.
2
nd
statement: Coal is a kind of fossil fuel.
Both statements are true but the 2
nd
one is not a correct explanation of the 1
st
one.
Only one statement is true while the other is false.
Both statements are true and the 2
nd
one is a correct explanation of the 1
st
one.
Both statements are false.
13
1
st
statement: Natural gas is often found together with petroleum in an oil trap.
2
nd
statement: Natural gas and petroleum are both fossil fuel.
Both statements are true but the 2
nd
one is not a correct explanation of the 1
st
one.
Only one statement is true while the other is false.
Both statements are true and the 2
nd
one is a correct explanation of the 1
st
one.
Both statements are false.
14
Which of the following compounds CANNOT be produced directly from ethene ?
carbon dioxide
ethanol
ethyl ethanoate
1,2-dibromoethane