Quiz

1.Carbon Monoxide is a pollutant emitted from car exhausts.
Which of its properties makes it harmful to humans

A. It dissolves in rain water to form acid rain
B. It forms a stable compound with blood
C. It combines with oxygen in the lungs
D. It has a corrosive action on lung tissue

2.The following gases are present in car exhaust fumes
-carbon dioxide, carbon monoxide, nitrogen dioxide, watervapour, nitrogen

Which of these gases is also present in unpolluted air?

A. Nitrogen only
B. Nitrogen and water vapour only
C. Nitrogen, carbon dioxide and water vapour only
D. Nitrogen, carbon monoxide, carbon dioxide and water vapour only

3.Mehtane, sulfur dioxide and carbon dioxide are gases which affect the

atmosphere and the environment. In what ways do these gases affect the

environment

Methane Sulfur Dioxide Carbon Dioxide

A. Depletion of Acid Rain Global Warming
ozone layer
B. Global Warming Photochemical smog Acid Rain

C.Photochemical Global Warming Depletion of
smog ozone layer

D.Global Warming Acid Rain Global Warming

4. In which list are the major components of the atmosphere placed in order of
increasing abundance

A. Oxygen > Nitrogen > Noble Gas
B. Oxygen > Noble Gas > Nitrogen
C. Nitrogen > Oxygen > Noble Gas
D. Nitrogen > Noble Gas > Oxygen



3. Alloys are mixtures of metallic substances. Which of the following pairs
are matched INCORRECTLY?
A. Brass – copper and zinc
B. Steel – iron and copper
C. Bronze – copper, zinc, and others
D. Sterling silver – silver and copper


5. When methane, CH4, burns in excess oxygen, the products would be
A. CH4O2
B. CO + H2O
C. CO + CH2OH
D. CO2 + H2O


6. A student performed an experiment and a gas was produced. After the gas
was collected and tested with a burning splint, a loud popping noise was
heard. Which of the following gases was produced?

A. Hydrogen
B. Oxygen
C. Carbon dioxide
D. Chlorine


7. Which of the following gases is known to shield the earth from harmful
ultraviolet radiation?
A. CO2
B. CFCs
C. SO2
D. O3

8. Which compound is INCORRECTLY matched to the functional group that it
contains?
A. CH3COOH hydroxyl
B. CH3OH hydroxyl
C. CCl3COOH carboxylic acid
D. C6H5COOH carboxylic acid

9. Ozone is a type of

A. nitrogen
B. oxygen
C. carbon dioxide
D. water vapor

10. In the upper atmosphere, ozone absorbs potentially harmful __________

radiation from the Sun.

A. Cosmic
B. gamma
C. magnetic
D. ultraviolet

11. Which one of the following is the most abundant gas in the atmosphere?

A. oxygen
B. nitrogen
C. hydrogen
D. carbon dioxide

12. With increasing altitude, air pressure __________.

A. increases at an increasing rate
B. decreases at a constant rate
C. decreases at an increasing rate
D. increases at a constant rate

13. O2 and O3 molecules are
A. allotropes.
B. structural isomers.
C. isotopes.
D. geometrical isomers.

14. Chlorofluorocarbons rise to the stratosphere and
A. react directly with stratospheric ozone to destroy it.
B. after interacting with UV energy, become free radicals, which destroy
ozone.
C. become free radicals that react with oxygen to create ozone.
D. react with free radicals to remove carbon dioxide

15. The combustion process for an effective fossil fuel must have an
activation energy that is neither too high nor too low. Why is it
problematic if the combustion has a very low activation energy?

A. The fuel will evaporate too easily and be hard to transport and store.
B. The fuel will ignite too easily and be hazardous.
C. Upon combustion, fuels with low activation energies produce greenhouse
gases.
D. Upon combustion, fuels with low activation energies will not release
useful amounts of energy.