Hydrocarbons
Practice Test
1.
What property can be assigned to a carbon atom that has four different atoms or structural groups attached to it?
SC.A.1.4.2
a.
geometry
b.
chivalry
c.
isomerity
d.
chirality
2.
What is the class of hydrocarbons that only have single bonds?
SC.A.1.4.5
a.
alkenes
b.
alkynes
c.
alkylhalides
d.
alkanes
3.
The branch of chemistry that is devoted to the study of carbon compounds is _________.
a.
inorganic chemistry
b.
analytical chemistry
c.
organic chemistry
d.
physical chemistry
4.
What is the prefix name that indicates when six carbon atoms are present in the alkane chain structure?
a.
pent
b.
hex
c.
hept
d.
oct
5.
What physical structure must be present to have geometric isomers, also known as cis— and trans—isomers?
SC.A.1.4.5
a.
single bond
b.
cyclic structure
c.
triple bond
d.
double bond
6.
Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.
SC.A.1.4.2
a.
isotopes
b.
isomers
c.
polymers
d.
alkanes
7.
In fractional distillation the hydrocarbons composed of fewer carbon atoms rise up the colam in the form of a _______________.
SC.A.1.4.3
a.
solid
b.
liquid
c.
distillate
d.
gas
8.
What kind of organic compounds contain benzene rings as part of their structure?
SC.A.1.4.2
a.
adiabatic compounds
b.
aliphatic compounds
c.
alkalinic compounds
d.
aromatic compounds
9.
Substances that cause cancer are ______________.
a.
unsaturated
b.
aliphatic
c.
carcinogenic
d.
substituted
10.
What organic compound is characterized by the presence of a triple bond?
SC.A.1.4.5
a.
alkene
b.
alkane
c.
alkyl halide
d.
alkyne
11.
What is the identifying structural feature of alkenes?
SC.A.1.4.5
a.
double bond
b.
attachment of a halogen
c.
triple bond
d.
single bonds
12.
The process used to separate fractions from petroleum is ___________.
a.
isomerization
b.
chirality
c.
drilling
d.
fractional distillation
13.
What term is used to describe isomers that have all the atoms bonded in the same order but arranged differently in space?
a.
polymers
b.
structural isomers
c.
stereoisomers
d.
nonisomers
14.
The structural formula -C=C- indicates a ___________ bond between the carbon atoms.
SC.A.1.4.5
a.
double covalent
b.
single covalent
c.
single ionic
d.
double ionic
15.
The side chain on an alkane that appears to replace a hydrogen on the straight chain is a _________________.
SC.A.1.4.1
a.
substituent chain
b.
longest chain
c.
parent chain
d.
cross-linked chain
16.
Hydrocarbons with __________ carbon atoms will be collected at the highest point on a fractionating tower.
SC.A.1.4.2
a.
20
b.
4
c.
8
d.
12
17.
What is the name given to a series of compounds that differ from one another by a repeating unit?
a.
heterogeneous series
b.
homogeneous series
c.
hydrocarbon series
d.
homologous series
18.
The smallest cycloalkane has __________ carbon atoms.
SC.A.1.4.5
a.
one
b.
six
c.
three
d.
two
19.
What is the name given to a hydrocarbon that contains a ring?
SC.A.1.4.5
a.
straight-chain hydrocarbon
b.
unsaturated hydrocarbon
c.
branched-chain hydrocarbon
d.
cyclic hydrocarbon
20.
How do structural isomers differ from stereoisomers?
a.
Structural isomers' atoms are bonded in different orders; stereoisomers' atoms are bonded in the same order.
b.
Structural isomers have different formulas; stereoisomers have the same formula.
c.
Structural isomers' atoms are bonded in the same order; stereoisomers' atoms are bonded in different orders.
d.
Stereoisomers have different chemical and physical properties; structural isomers have the same chemical and physical propeties.
21.
What is the principle use of alkanes?
SC.H.3.4.6
a.
as polar solvents
b.
as fuels
c.
as flavorings
d.
as antiseptics
22.
What type of organic compound has at least one double or triple bond?
SC.A.1.4.5
a.
cyclic hydrocarbon
b.
unsaturated hydrocarbon
c.
alkane
d.
saturated hydrocarbon
