wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Acids, Bases & Salts

Total questions: 50

Worksheet time: 55mins

Name
Class
Date
1.

Which of the following values would represent the pH of a strong base?

a)

1

b)

8

c)

7

d)

13

2.

Which of the following values would represent the pH of a strong acid?

a)

1

b)

6

c)

7

d)

13

3.

What range of values on the pH scale represent solutions with a higher ratio of hydronium (H3O+) ions?

a)

0-14

b)

below 7

c)

7

d)

above 7

4.

What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH-) ions?

a)

below 7

b)

7

c)

above 7

d)

0-14

5.

When found in food, acids often taste ________.

a)

Sour

b)

Bitter

c)

Salty

d)

Slippery

6.

When found in food, bases often taste _______.

a)

Sour

b)

Bitter

c)

Salty

d)

Soggy

7.

Ocean water has a pH value near "8". It would be classified as...

a)

slightly acidic

b)

a strong base

c)

a neutral substance

d)

slightly basic (alkaline)

8.

Four solutions are tested and found to have the following pH values. Which of these substances would be considered the weakest acid?

a)

Lemon Juice - pH=2

b)

Apple Juice - pH=4.5

c)

Shower Cleaner - pH=5.5

d)

Hydrogen Peroxide - pH=7

9.

Many cleaning solutions are bases. Which of the following is a common property among basic solutions?

a)

slippery feel

b)

white color

c)

salty taste

d)

sour taste

10.

Pure water (H2O) has a pH of 7 and would be classified as...

a)

a base

b)

a neutral substance

c)

both an acid and a base

d)

an acid

11.

Acidic solutions exhibit a higher ratio of H3O+ ions, known as...

a)

neutrons

b)

hydroxide

c)

electrons

d)

hydronium

12.

The products of a neutralization reaction are usually...

a)

salt and water

b)

an acid and a base

c)

a neutral solution

d)

carbon dioxide and oxygen

13.

The reactants in a neutralization reaction are always...

a)

salt and water

b)

an acid and a base

c)

a neutral solution

d)

carbon dioxide and oxygen

14.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
15.

Acids are __________, which means they "eat away" at other materials.

a)

transitional metal

b)

alkaline

c)

flammable

d)

corrosive

16.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
17.
Neutralization reactions
a)
formed from joining positive and negative ions 
b)
increases OH ions
c)
froms a salt and water
d)
increases H2O ions
18.
What is the conjugate acid in the following equation?
a)
PO43- 
b)
HNO3 
c)
NO3- 
d)
HPO42-
19.
What is the conjugate base in the following reaction?
a)
HCO3- 
b)
HCl
c)
 H2CO3 
d)
Cl-
20.

How do Bronsted-Lowry conjugate acid-base pairs differ?

a)

differ by one H+

b)

Differ by one OH-

c)

Differ by two H+

d)

Differ by some number of H+

21.

Which of the following correctly identifies an acid-base pair?

a)

HCl, NaOH

b)

H2CO3 , CO32-

c)

H3O+ , OH-

d)

NH3, NH4+

22.

Which of the following correctly identifies an Acid-Base Pair?

a)

HH4+ , OH-

b)

H2O , OH-

c)

CaCO3 ,CaCl2

d)

HNO3 , H2SO4

23.

Given the reaction above, which compound is the bronsted-Lowry Acid?

a)

NH3

b)

HCl

c)

NH4+

d)

Cl-

24.

Given the reaction above, which compound is the bronsted-Lowry Conjugate base, if HCl is the acid?

a)

NH3

b)

NH4+

c)

Cl-

25.

Given the information from the previous three questions, what is NH4+ classified as?

a)

Acid

b)

Base

c)

Conjugate Acid

d)

Conjugate Base

26.

What is the colour of litmus in an acid ?

a)

Pink

b)

Yellow

c)

Red

d)

Colourless

27.

What is the colour of litmus in a base ?

a)

Pink

b)

Blue

c)

Red

d)

Colourless

28.

What is the colour of phenolphthalein in a base ?

a)

Pink

b)

Blue

c)

Red

d)

Colourless

29.

What is the colour of methyl orange in a base ?

a)

Pink

b)

Blue

c)

Yellow

d)

Colourless

30.

What is the colour of methyl orange in a base ?

a)

Pink

b)

Blue

c)

Yellow

d)

Colourless

31.

What is the colour of litmus in neutral?

a)

Pink

b)

Orange

c)

Yellow

d)

Purple

32.

What is the colour of phenolphthalein in neutral?

a)

Colourless

b)

Orange

c)

Yellow

d)

Purple

33.
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
34.
The pH of a strong acid would be:
a)
1-2
b)
5-6
c)
8-9
d)
12-13
35.
The pH of a strong base would be:
a)
1-2
b)
5-6
c)
8-9
d)
13-14
36.
Examine the results (color change) of the pH paper shown in the picture.  What type of substance was tested?
a)
an acid
b)
a base
c)
a neutral substance
d)
none of the above
37.
What is the pH of the substance being tested?
a)
2
b)
4
c)
6
d)
8
38.
What is the pH of a solution that has a [H+] of 2.5 x 10-5?
a)
4.60
b)
5.0
c)
2.5
d)
7
39.
What is the pOH of a solution where the [OH-] is 7.3 x 10-2 M?
a)
-1.14
b)
2.0
c)
1.14
d)
7.3
40.
What is the [OH-] if the [H+] is 1.0 x 10-3M?
a)
1.0 x 10-3 M
b)
6.02 x 10-23 M
c)
1.0 x 10-14 M
d)
1.0 x 10-11 M
41.
What is the [H+] if the pH is 4.0?
a)
1.0 x 10-10  M
b)
1.0 x 10-4  M
c)
1.0 x 10-14  M
d)
1.0 x 10-7  M
42.
What is the pOH of a solution that has a pH of 2?
a)
10
b)
12
c)
14
d)
1
43.

What is the [H+] in a solution with a pH of 11?

a)

1 x 10-1 M

b)

1 x 10-2 M

c)

1 x 1011 M

d)

1 x 10-11 M

44.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
45.
If the pH of a solution is 5.6 the pOH is
a)
6.5
b)
12.4
c)
8.4
d)
5.6
46.
If the [H+] of a solution is 6.8 x 10-9 mol/L the pH is
a)
8.17
b)
8.2
c)
9.99
d)
8.62
47.
Which solution releases H+ in solution?
a)
Base
b)
Acid
c)
Buffer
d)
Water
48.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
49.

What are the products of this UNBALANCED neutralization reaction:

KOH + H2SO4 -->

a)

HOH + K2SO4

b)

KSO4 + HOH

c)

HOH + HSO4- + K+

50.

What are the products of this UNBALANCED neutralization reaction:

Al(OH)3 + H3PO4 -->

a)

HOH + AlPO4

b)

HOH + Al3(PO4)3

c)

HOH + H2PO4 +Al+3

Similar Resources on Wayground

Evaluación inicial. Física y química. 2º ESO

45 questions

Evaluación inicial. Física y química. 2º ESO

quiz

Worksheet

•

KG - University

Elements

50 questions

Elements

quiz

Worksheet

•

11th Grade

EOC Review 2016-2017

50 questions

EOC Review 2016-2017

quiz

Worksheet

•

9th - 12th Grade

Edexcel iGCSE Extracting metals and Structure and bonding

45 questions

Edexcel iGCSE Extracting metals and Structure and bonding

quiz

Worksheet

•

9th - 11th Grade

Concurso de Saberes Interno

51 questions

Concurso de Saberes Interno

quiz

Worksheet

•

1st - 2nd Grade

Yr 10 - Periodic Table Trends

50 questions

Yr 10 - Periodic Table Trends

quiz

Worksheet

•

10th Grade