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pH Chemistry

Total questions: 34

Worksheet time: 21mins

Name
Class
Date
1.

What does pH measure?

a)

the amount of hydrogen (H+) ions

b)

the amount of hydroxide (OH-) ions

c)

amount of water

d)

all of the above

2.

Which of the following is the strongest acid?

a)

1

b)

5

c)

3

d)

8

3.

Which of the following is the strongest base?

a)

4

b)

14

c)

7

d)

15

4.

A pH of 3 is how many times more acidic than a pH of 5?

a)

2

b)

20

c)

10

d)

100

5.

A pH of 8 is how many times more acidic than a pH of 11?

a)

3

b)

30

c)

100

d)

1000

6.

Acids and bases can combine to create water and salts.

a)

True

b)

False

7.

Neutral solutions have a pH of

a)

pH of 2

b)

pH of 0

c)

pH of 7

d)

A neutral solution does not have a pH

8.

An acid’s pH is between :

a)

0 to 6

b)

7

c)

8-14

d)

6-14

9.

Vinegar is an example of:

a)

Strong Acid

b)

Weak Acid

c)

Strong Base

d)

Weak Base

10.

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

a)

Both of the solution are Bases

b)

Both of the solution are Acids

c)

The Baking soda is an acid and the Bleach is a base

d)

The baking soda is a base and the Bleach is an Acid.

11.

A base is a substance

a)

That releases OH- ions when dissolved in water

b)

That releases H+ ions when dissolved in water

c)

Does not release any ions when dissolved in water

d)

None of the above

12.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
13.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
14.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
15.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
16.
Which solution releases H+ in solution?
a)
Base
b)
Acid
c)
Buffer
d)
Water
17.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
18.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
19.
Which is most acidic?
a)
Baking Soda
b)
Lemon Juice
c)
Black Coffee
d)
Milk
20.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
21.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
22.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
23.
Feels slippery.
a)
Acids
b)
Bases
c)
All
24.
Bases will turn litmus paper __________, while acids will turn litmus paper __________.
a)
blue.....red
b)
red.....blue
c)
pink.........colourless
d)
colourless..........pink
25.
An indicator will ______________ when it is in contact with an acid or base
a)
Bubble
b)
Form a new substance
c)
Change color
d)
Stay the same color
26.
What color does litmus paper turn in the presence of an acid?
a)
Red
b)
Blue
27.
The pH of a strong base would be:
a)
1-2
b)
5-6
c)
8-9
d)
13-14
28.
The pH of a weak base would be:
a)
1-2
b)
5-6
c)
8-9
d)
12-13
29.
According to the image, the substance tested is a...
a)
Acid
b)
Neutral
c)
Strong Acid
d)
Base
30.
According to the image, the substance tested is a...
a)
Acid
b)
Base
c)
Neutral
d)
Strong Acid
31.
One benefit of pH paper is that it...
a)
Tells you the pH of a substance
b)
Only tells you if a substance is an acid or a base
c)
It is very accurate
d)
It is expensive
32.
One drawback of litmus paper is that it
a)
Only tells you if a substance is an acid or a base
b)
is very expensive
c)
is messy
d)
has to be connected to a computer
33.
What is the pH of the substance being tested?
a)
2
b)
4
c)
6
d)
8
34.
How would you classify the substance being tested?
a)
Acid
b)
Base
c)
Both
d)
Neither

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