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