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Acids & Bases Mini-Review

Total questions: 40

Worksheet time: 23mins

Name
Class
Date
1.

A sour taste is a characteristic of:

a)

acids

b)

bases

c)

neutral

d)

pH scale

2.

Which is a characteristic of a base?

a)

tastes sour

b)

found mostly in foods

c)

feels slippery

d)

turn litmus paper red

3.

pH is the measure of the concentration of ______.

a)

Acids

b)

H+ ion

c)

OH- ion

d)

Bases

4.

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

a)

HH4+ , OH-

b)

H2O , OH-

c)

CaCO3 ,CaCl2

d)

HNO3 , H2SO4

5.
If a solution is basic which ion will be more present?
a)
H+
b)
K+
c)
OH-
d)
H-
6.

Which of the following is a strong acid?

a)

oxalic acid

b)

nitric acid

c)

carbonic acid

d)

acetic acid

7.

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

a)

1

b)

8

c)

7

d)

13

8.
Bleach and oven cleaner are:
a)
strong acids
b)
weak acids
c)
strong bases
d)
weak bases
9.

Which of the following is true .

a)

Acids and bases form hydroxide ions in solution

b)

Acids form hydroxide ions and bases hydrogen ions in solution

c)

Acids form hydrogen ions in solution, bases do not form ions in solution

d)

Acids form hydrogen ions in solution and bases hydroxide ions

10.

A substance that is 3 on the pH scale would be a(n):

a)

acid

b)

base

c)

neutral

d)

solute

11.
Which one of the following is an example of a base?
a)
orange juice
b)
dish soap
c)
vinegar
d)
lemons
12.

When the pH of your pool is too high, algae and bacteria can flourish, what do you need to add to lower it

a)

salt (e.g. sodium chloride)

b)

chlorine

c)

hydrochloric acid

d)

sodium carbonate

13.

When the pH of your pool is too low, it can irritate your skin, what do you need to add to raise it

a)

salt (e.g. sodium chloride)

b)

chlorine

c)

hydrochloric acid

d)

sodium carbonate

14.

Which of the following is a neutralisation reaction?

a)

metal + acid → salt + hydrogen

b)

metal + acid → salt + water

c)

carbonate + acid → salt+ carbon dioxide + hydrogen

d)

base + acid → salt + water

15.

Indicators

a)

have a very high pH

b)

change colour to show the pH of a substance

c)

change colour in the presence of salts

d)

have a very low pH

16.

If all three indicators were added to a mystery solution and it turned green, what pH is the solution likely to be

a)

2 - 4

b)

4 - 7

c)

7 - 9

d)

9 - 11

17.

If you added universal indicator to vinegar, what colour would it turn

a)

blue

b)

green

c)

yellow

d)

red

18.

An acid....

a)

Turns light pink when phenolphthalein is added

b)

Produces H+ ions in water

c)

Turns blue when tested with litmus paper

d)

Has a pH of less than 7.

19.

A base....

a)

Has a pH less than 7

b)

Produces OH- ions in solution

c)

Turns pink when phenolphthalein is added.

d)

Turns litmus paper red

20.

Identify the acid listed below:

a)

KOH

b)

H2O

c)

H2SO4

d)

NaCl

21.

Name the following acid: HBr

a)

Hydrobromic Acid

b)

Bromic Acid

c)

Hydrogen Monobromide Acid

d)

Bromous Acid

22.

What is the formula for the following acid: Chloric Acid

a)

HCl

b)

HClO2

c)

HClO3

d)

HC

23.

Which of the following is a base:

a)

Drain Cleaner, pH 11

b)

Stomach Acid, pH 2

c)

Water, pH 7

d)

Baking Soda, pH 8

24.

If a solution has a [H+] of 1.0 x 10 -5, what is the pH?

a)

9

b)

14

c)

1.0

d)

5

25.

Which of the following is most acidic:

a)

pH of 4

b)

[H+] = 1.0 x 10 -2

c)

[H+] = 1.0 x 10 -13

d)

[OH-] = 1.0 x 10 - 6

26.

During a neutralization reaction the salt, KBr, is produced. What acid reacted?

a)

HK

b)

KOH

c)

HBr

d)

HOH

27.

What does a color change to faint pink signal in a titration?

a)

End point has been reached and solution is neutralized.

b)

Solution is more acidic

c)

You need to add more base.

d)

The pH of the solution is 14

28.

Which characteristics describe an acid?

a)

tastes sour, litmus indicator turns red

b)

tastes bitter, litmus indicator turns blue

c)

tastes sweet and sour, litmus indicator turns red

d)

tastes sour and bitter, litmus indicator turns blue

29.

Which characteristics describe a base?

a)

tastes sour, litmus indicator turns blue

b)

tastes bitter, litmus indicator turns blue

c)

tastes bitter sour, litmus indicator turns blue green

d)

tastes bitter sour, litmus indicator turns green

30.

What property do all three of these fruits have in common?

a)

taste bitter sweet

b)

cannot conduct electricity

c)

have pH below 7

d)

turn litmus paper blue

31.

The pH scale is a range from

a)

1 to 7

b)

0 to 14

c)

1 to 14

d)

1 to 20

32.

Which statement is true?

a)

the lower the pH, the stronger the acid

b)

the higher the pH, the stronger the acid

c)

the lower the pH, the more neutral the acid

d)

the higher the pH, the weaker the alkali

33.

A very strong acid would have a pH of

a)

1

b)

7

c)

9

d)

14

34.

A weak alkali would have a pH of

a)

8

b)

7

c)

6

d)

14

35.

A solution with a pH of 3.6 would be

a)

acidic

b)

alkaline

c)

neutral

d)

acidic and alkaline

36.

A solution with a pH of 8.6 would be

a)

acidic

b)

alkaline

c)

neutral

d)

acidic and alkaline

37.

If you have a solution that is very acidic with a pH of 3.5, what can you do to raise the pH of the solution?

a)

add an acid

b)

add more water

c)

increase the temperature

d)

add a base

38.
What is another name for base?
a)
Phenolphtalein
b)
Alkaline
c)
Acid
d)
pH
39.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
40.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy

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