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Carbon Chemistry Review 1
Test Description: Review of Chapter 9 Test questions.
Instructions: Answer all questions to get your test result.
1) Which of the following statements helps explain why there are millions of carbon compounds?
A
carbon has four valence electrons
B
carbon atoms form bonds with other carbon atoms
C
all of the above
D
carbon atoms can form single, double, and triple bonds
2) Which of the following statements is true?
A
organic compounds always contain carbon and hydrogen
B
organic compound are produced only in organisms
C
organic compounds contain only carbon and hydrogen
D
about 10 percent of all known compounds are organic compounds
3) The carbon atoms in a hydrocarbon CAN be arranged in
A
straight (linear) chains
B
branched chains
C
all of the above
D
cross-linked chains
4) Which of the following is NOT an example of a fossil fuel?
A
methanol
B
natural gas
C
coal
D
petroleum
5) What are the main products of the incomplete combustion of fossil fuels?
A
carbon dioxide and hydrocarbons
B
water and carbon monoxide
C
oxygen and hydrocarbon
D
water and carbon dioxide
6) When monomers link together, they usually form
A
ionic bonds
B
a network solid
C
a polymer
D
another monomer
7) In a polymer, monomers are linked by
A
polyatomic ions
B
metallic bonds
C
ionic bonds
D
covalent bonds
8) Natural polymers are produced
A
only in plant cells
B
in both plant and animal cells
C
only in animal cells
D
in neither plant nor animal cells
9) Which of the following is a result of the complete combustion of fossil fuels?
A
the amount of carbon dioxide in the atmosphere increases
B
the amount of carbon monoxide in the atmosphere increases
C
nitrogen oxides are released into the atmosphere
10) Which type of polymer is the strongest
A
branched polymers
B
linear polymers
C
cross-linked polymers
11) The prefix cyclo means
A
the hydrocarbon has a ring structure
B
the hydrocarbon has a branched structure
C
the hydrocarbon has a triple bond
D
the hydrocarbon has a double bond
12) In the compound C6H12O2, the subscript 2 after the oxygen means that
A
there are two more oxygen atoms than carbon and hydrogen atoms in the molecule
B
there are 2 oxygen atoms for every six carbon atoms and twelve hydrogen atoms
C
the carbon atom is three times the size of the oxygen atoms
D
oxygen and hydrogen have a double bond
13) In fullerenes, the carbon atoms are
A
bonded in alternating hexagons and pentagons on the surface of a hollow sphere (like a soccer ball)
B
bonded to three other carbons in a widely spaced layer
C
not bonded to each other
D
bonded in a network solid
14) Butane has the formula of C4H10. How many carbon atoms are in butane?
A
1
B
6
C
4
D
10
15) Which of the following is a saturated hydrocarbon? (Alkane)
A
pentyne
B
benzene
C
butene
D
Propane
16) The prefix dec- means ten. Which of the following best describes the structure of decene?
A
it contain ten carbon atoms and at least one triple bond
B
it contains ten carbon atoms and only single bonds.
C
it contains ten carbon atoms and at least one double bond
D
it contains a total of 10 atoms
17) One of the gases released after gasoline burns in a car's engine is carbon monoxide. Which of the following statement explains why there is carbon monoxide in this mixture of gases?
A
carbon monoxide is produced when a fossil fuel is burned by complete combustion
B
not enough oxygen is present when the gasoline is burned in the engine
C
the combustion of gasoline in the engine is complete combustion
D
gasoline contains carbon monoxide
18) Which of the following is NOT a type of unsaturated hydrocarbon?
A
alkane
B
alkyne
C
aromatic hydrocarbon
D
akene
19) How many covalent bonds can one carbon atom form?
A
8
B
2
C
4
D
6
20) Which of is an example of a network solid?
A
graphite
B
buckyball
C
diamond
D
fullerene
*select an answer for all questions
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