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Multiple Choice
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1

A substance that can behave as either an acid or a base is
A)anthocyanin
B)a neutral substance
C)an indicator
D)an amphiprotic substance
2

The hydronium ion formula is
A)H+
B)OH-
C)H3O+
D)OH+
3

The difference between a strong and weak acid is that the strong acid ionizes __, whereas the weak acid ionizes __.
A)completely, not at all
B)completely, slightly
C)slightly, completely
D)slightly, not at all
4

Which of the following is a strong acid?
A)H2SO4
B)H2SO3
C)HClO
D)HClO2
5

Which of the following is a characteristic of acids?
A)they are proton acceptors
B)they are slippery
C)they have a sour taste
D)they are ionic compounds
6

pH is
A)-log [H3O+]
B)log OH-
C)[H3O+]
D)antilog [H3O+]
7

The hydroxide ion concentration of a solution of a base is 0.001 M. The pH of the solution is
A)4
B)12
C)8
D)11
8

Which of the following solutions has the highest hydroxide ion concentration?
A)0.2 M HCl
B)0.2 M H2SO4
C)pure water
D)a solution with pH 8
9

What is the hydronium ion concentration of sea water which has a pH of 8?
A)8 x 10-1 M
B)1.1 x 10-8 M
C)7.9 x 10-9 M
D)1.2 x 10-7 M
10

Which of the following has the weakest conjugate base?
A)HNO2
B)HClO2
C)HClO
D)HNO3
11

Which of the following salts produces an acid solution when dissolved in water?
A)NaCl
B)NaHCO3
C)NH4Cl
D)KI
12

What is the oxidation number of carbon in methane?
A)+4
B)-4
C)+2
D)-2
13

The oxidation number of oxygen in most compounds is __.
A)+1
B)-1
C)+2
D)-2





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