Acids, Bases, and pH
Practice Test
1.
HC
2
H
3
O
2
is a _______________ acid.
a.
strong
b.
monoprotic
c.
diprotic
d.
quadprotic
2.
What will a nonmetallic anhydride produce in aqueous solution?
a.
base
b.
acid
c.
solid precipitate
d.
salt
3.
This substance is usually the top industrial chemical produced in the United States.
a.
chlorine
b.
sulfuric acid
c.
ammonia
d.
sodium hydroxide
4.
Oxides of this element are usually involved in producing acid rain.
a.
boron
b.
sulfur
c.
bromine
d.
sodium
5.
Which of these is neither an acid nor a base when mixed with water?
a.
C
2
H
6
b.
LiOH
c.
NH
3
d.
HI
6.
A base is a substance that produces ____________ ions when it dissolves in water.
a.
hydronium
b.
hydroxide
c.
carbonate
d.
sodium
7.
An acid is a substance that produces ____________ ions when it dissolves in water.
a.
sodium
b.
bromide
c.
hydroxide
d.
hydronium
8.
The pH scale is used to express the concentrations of hydronium ions and _____________ ions in aqueous solutions.
a.
carbon
b.
hydroxide
c.
fluoride
d.
potassium
9.
Which of the following compounds is NOT a base?
a.
KCN
b.
NaOH
c.
KOH
d.
NH
3
10.
___________________ allow you to determine the approximate pH of a solution.
a.
Anhydrides
b.
Acid-base indicators
c.
Equations
d.
Beakers
11.
Acids react with ___________ to produce carbon dioxide.
a.
phosphates
b.
nitrates
c.
carbonates
d.
sulfates
12.
Nonmetal oxides are _________________.
a.
nonpolar solutes
b.
hydrides
c.
basic anhydrides
d.
acidic anhydrides
13.
Which of these is formed when magnesium oxide dissolves in water?
a.
H
3
O
+
b.
OH
-
c.
Cl
-
d.
Mg
-
14.
Which of these is a product of the first step in the ionization of phosphoric acid, H3PO4?
a.
HPO4
b.
PO4
c.
H3PO4
d.
H2PO4
15.
Lemon juice is _______________.
a.
very basic
b.
very acidic
c.
slightly basic
d.
neutral
16.
Which of these is formed when ammonia ionizes in water?
a.
NH
4
+
b.
H
3
O
+
c.
NH
2
-
d.
N
3-
17.
Strong bases are more _______________ than weak bases.
a.
molecular
b.
dense
c.
nonmetallic
d.
highly ionized
18.
When added to an acid, litmus is __________.
a.
blue
b.
red
c.
yellow
d.
green
19.
A pH 13 solution is ______________ times more basic than a pH 9 solution.
a.
10 000
b.
100
c.
1000
d.
10
20.
Compared to strong acids, weak acids produce __________ ions and conduct electricity __________ efficiently.
a.
fewer, less
b.
more, more
c.
more, less
d.
fewer, more
21.
Which of these formulas does NOT represent a strong acid?
a.
HI
b.
HBrO
c.
H
2
SO
4
d.
HBr
22.
What is the formula for perchloric acid?
a.
HClO
3
b.
HClO
4
c.
HCl
d.
HClO
2
23.
An aqueous solution of a weak acid contains ___________________ unionized acid molecules.
a.
100%
b.
no
c.
a low concentration of
d.
a high concentration of
24.
A pH 2 solution is ___________ times more acidic than a pH 4 solution.
a.
one hundred
b.
two
c.
ten
d.
one million
25.
These compounds have a bitter taste and a slippery feel.
a.
salts
b.
bases
c.
acids
d.
hydrocarbons
26.
Acids react with active metals to produce ______________.
a.
hydrogen
b.
sulfur
c.
oxygen
d.
chlorine
27.
A pH of 7 is considered to be _____________.
a.
slightly acidic
b.
neutral
c.
slightly basic
d.
highly basic
28.
The reaction between nitric acid and barium hydroxide produces water and _____________.
a.
BaNO
b.
Ba
3
N
2
c.
Ba(NO
2
)
2
d.
Ba(NO
3
)
2
