Hydrocarbons
Practice Test
1.
Chiral carbons will produce _____________.
a.
optical isomers
b.
polymers
c.
monomers
d.
structural isomers
2.
A 0.001
M
solution of HCl is ____________.
SC.A.1.4.4
a.
a weak acid solution
b.
neutral
c.
a concentrated acid solution
d.
a dilute acid solution
3.
What kind of organic compounds contain benzene rings as part of their structure?
SC.A.1.4.2
a.
aromatic compounds
b.
aliphatic compounds
c.
adiabatic compounds
d.
alkalinic compounds
4.
The structural formula -C=C- indicates a ___________ bond between the carbon atoms.
SC.A.1.4.5
a.
single covalent
b.
double ionic
c.
double covalent
d.
single ionic
5.
What type of organic compound has at least one double or triple bond?
SC.A.1.4.5
a.
saturated hydrocarbon
b.
alkane
c.
cyclic hydrocarbon
d.
unsaturated hydrocarbon
6.
Hydrocarbons with __________ carbon atoms will be collected at the highest point on a fractionating tower.
SC.A.1.4.2
a.
12
b.
8
c.
4
d.
20
7.
What is the formula for the binary compound of potassium and chlorine?
Binary Molecular Compound
Binary Acid
Contains only two different elements
Contains hydrogen and one other element
Second element uses name + -ide
Uses hydro + root of second element + -ic and acid
SC.A.1.4.1
a.
KCl
b.
KHCl
c.
K
2
ClO
3
d.
KCl
2
8.
Many simple molecules contain two lone pairs around the central atom. Which type of electron—to—electron repulsions are smallest in these molecules?
SC.A.1.4.5
a.
bonding pair to lone pair
b.
All repulsions are equal.
c.
bonding pair to bonding pair
d.
lone pair to lone pair
9.
What is the identifying structural feature of alkenes?
SC.A.1.4.5
a.
double bond
b.
triple bond
c.
single bonds
d.
attachment of a halogen
10.
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.
alkanes
b.
isotopes
c.
isomers
d.
polymers
11.
What is the principle use of alkanes?
SC.H.3.4.6
a.
as antiseptics
b.
as fuels
c.
as polar solvents
d.
as flavorings
12.
Which of the following is a strong base?
SC.A.1.4.5
a.
NH
3
b.
HCO
3
-
c.
HCOOH
d.
NaOH
13.
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.
cross-linked chain
d.
parent chain
14.
What is the molecular compound name for hydrazine, N
2
H
4
?
Number of atoms
Prefix
1
mono-
2
di-
3
tri-
SC.A.2.4.2
a.
trinitrogen pentahydride
b.
dinitrogen hydride
c.
trinitrogen quatrohydride
d.
dinitrogen tetrahydride
15.
What hybridization is present in an octahedral molecular geometry?
SC.A.2.4.1
a.
sp
3d
b.
sp
2
c.
sp
3
d
2
d.
sp
3
16.
Which element can share only one pair of electrons?
a.
O
b.
N
c.
C
d.
H
17.
According to the BrÆnsted-Lowry theory, a base is a
n
___________.
SC.A.1.4.5
a.
electron pair acceptor
b.
electron pair donor
c.
hydrogen ion donor
d.
hydrogen ion acceptor
18.
The acid ionization constant,
K
a
, is __________ for __________ acids.
SC.A.2.4.1
a.
largest, anhydride
b.
largest, weak
c.
smallest, strong
d.
smallest, weak
19.
What is the name given to a series of compounds that differ from one another by a repeating unit?
a.
hydrocarbon series
b.
homogeneous series
c.
homologous series
d.
heterogeneous series
20.
In forming a molecular structure, each atom should have ________ electrons around it unless there is some specific reason why this cannot be achieved.
SC.A.1.4.5
a.
6
b.
8
c.
4
d.
2
