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Hydrocarbons Chapter 25
Test Description: Hydrocarbons chapter 25
Instructions: Answer all questions to get your test result.
1) What is the general formula for cycloalkanes?
A
CnH2n-2
B
CnHn
C
CnH2n
D
CnH2n+2
2) In cycloalkanes, each carbon atom bonds to how many other carbon atoms?
A
1
B
3
C
4
D
2
3) Cycloalkanes can have shapes that are
A
planar.
B
three-dimensional
C
all of these.
D
circular.
4) Unsaturated hydrocarbons that have one carbon-carbon double bond are called
A
any of these.
B
alkynes.
C
alkenes.
D
alkanes.
5) What is the general formula for alkynes?
A
CnH2n
B
CnH2n-2
C
CnHn
D
CnH2n+2
6) Which of the following is an important unsaturated cyclic hydrocarbon with two resonance structures, neither of which accurately describes its bonds?
A
cyclohexane
B
morphine
C
cycloethane
D
benzene
7) Which of the following is a class of large organic compounds made of repeating units?
A
chains
B
polymers
C
polyalkanes
D
clusters
8) Proteins are long chains in which the repeating units are
A
amino acids
B
ethylene bases.
C
ethanoic acids.
D
styrene bases.
9) Synthetic carbon compounds that decompose over time are labeled
A
recyclable.
B
nonrenewable.
C
self-restoring.
D
biodegradable.
10) A proactice that can extend the availability of natural resources for future generations is
A
wider use of petroleum products.
B
the recycling of synthetic compounds.
C
all of these.
D
the use of nonbiodegradable products.
*select an answer for all questions
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