Exercise 2
1.
Gasoline with octane number 75,
means. . .
a. Gasoline is composed of 75% isooktana and 25% hexane.
b. Gasoline is composed of 25% isooktana and 75% hexane.
c. Gasoline is composed of 75% isooktana and 25% pentane.
d. Gasoline is composed of 25% isooktana and 75% butane.
e. Gasoline is composed of 75% isooktana and 25% heptane
a. Gasoline is composed of 75% isooktana and 25% hexane.
b. Gasoline is composed of 25% isooktana and 75% hexane.
c. Gasoline is composed of 75% isooktana and 25% pentane.
d. Gasoline is composed of 25% isooktana and 75% butane.
e. Gasoline is composed of 75% isooktana and 25% heptane
2.
The lowest boiling point of the distillation
result of petroleum, namely is. . . .
a. solar d. gasoline
b. asphalt e. wax
c. LPG
a. solar d. gasoline
b. asphalt e. wax
c. LPG
3.
The addition of additives to the gasoline intended for. . .
a. Lower the boiling point.
b. Separate from other petroleum fractions.
c. Reduce knocking and improve the octane number.
d. Reduce pollutants in smog are discarded.
e. Perfectly burn of gasoline
a. Lower the boiling point.
b. Separate from other petroleum fractions.
c. Reduce knocking and improve the octane number.
d. Reduce pollutants in smog are discarded.
e. Perfectly burn of gasoline
4.
Toxic vapors generated from the
combustion of gasoline containing the metal. . . .
a. Pb d. Sn
b. Cr e. Br
c. Hg
a. Pb d. Sn
b. Cr e. Br
c. Hg
5.
Gas produced by burning gasoline that
cause the greenhouse effect. . . .
a. Pb d. SO2
b. Ethyl bromide e. CO
c. CO2
a. Pb d. SO2
b. Ethyl bromide e. CO
c. CO2
6.
Combustion of coal will lead to
acid rain because of the coal contained ....
a. straight-chain alkanes
b. isoalkana
c. benzene
d. reciprocal
e. Sulfur
a. straight-chain alkanes
b. isoalkana
c. benzene
d. reciprocal
e. Sulfur
7.
Components of gasoline are the
most widely produced beats that. . . .
a. hydrogen
b. aliphatic alkanes
c. cycloalkanes
d. straight-chain alkanes
e. branched alkanes
a. hydrogen
b. aliphatic alkanes
c. cycloalkanes
d. straight-chain alkanes
e. branched alkanes
8.
Revegetation can reduce levels of pollutants in
the air due. . .
a. Able to bind N2 gas in the air.
b. Maintain the balance of CO2 in the air.
c. Transform CO2 into O2.
d. Absorb the waste.
e. CO binding and release O2.
a. Able to bind N2 gas in the air.
b. Maintain the balance of CO2 in the air.
c. Transform CO2 into O2.
d. Absorb the waste.
e. CO binding and release O2.
9.
A hydrocarbon has the empirical
formula CH. Compound formula mass = 26. The formula of
the compound is. . . .
A. CH2 D. C2H6
B. C2H2 E. C3H3
C. C2H4
A. CH2 D. C2H6
B. C2H2 E. C3H3
C. C2H4
10.
results of research by experts, it is known that
plants can also produce liquid fuels, ie. . . .
a. bioethanol
b. biometanol
c. biogas
d. bioenergy
e. vegetable oil
a. bioethanol
b. biometanol
c. biogas
d. bioenergy
e. vegetable oil
Answered Keys
1. E
2. C
3. C
4. A
5. E
6. E
7. D
8. C
9. B
10. B
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