Natural gas burns with a relatively clean flame.Which of the following potential pollutants is produced in significant quantities during the combustion of natural gas in air?
A) sulfur oxides
B) nitrogen oxides
C) metal oxides
D) All of the above are produced in significant quantities.
Correct Answer:
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Q56: Which of the following did NOT contribute
Q57: When coal burns,
A)chemical energy is converted to
Q58: The major component of natural gas is
A)ethane.
B)methane.
C)butane.
D)octane.
Q59: The lowest grade of coal is
A)anthracite.
B)bituminous.
C)lignite.
D)peat.
Q60: Approximately what percentage of U.S.electricity is generated
Q62: To make crude petroleum more useful,it must
Q63: Pure heptane would have an octane rating
Q64: The main components of petroleum are
A)hydrocarbons.
B)carbohydrates.
C)fats and
Q65: Catalytic reforming is a process for converting
A)low
Q66: The fraction from the distillation of crude
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