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Acids and Bases Quiz

Total questions: 22

Worksheet time: 14mins

Name
Class
Date
1.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
2.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
3.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
4.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
5.
A pH scale is...
a)
A  corrosive substance that says a substance is an acid.
b)
An indicator that tells if a substance is an acid or base. 
c)
A blue litmus paper.
d)
A red litmus paper.
6.

How can you increase the rate of dissolution?

a)

Stirring

b)

Increase surface area

c)

Increase temperature

d)

Increase volume

7.

An acid is a substance that produces ________ ions in a solution.

a)

Hydrogen

b)

Hydroxide

c)

Sodium

d)

Acetate

8.

Which substance produces hydroxide ions in solution?

a)

Acid

b)

Base

c)

Hydronium

d)

Ester

9.

Which substance turns litmus paper shades of red?

a)

Acid

b)

Base

c)

Water

d)

Salt

10.

Which answer choice best describes a substance with a pH of 2?

a)

A strong base

b)

A strong acid

c)

A weak base

d)

A weak acid

11.

Which of the following is a neutral substance?

a)

coffee (pH: 4.5-6.0)

b)

vinegar (pH: 2.5)

c)

pure water (pH: 7)

d)

bleach (pH: 11)

12.

Which of the following is a strong base?

a)

concentrated bleach (pH: 13)

b)

ammonia (pH: 11.6)

c)

tap water (pH: 6.5-8.5)

d)

lime juice (pH: 2.8)

13.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
14.

Acids with a low pH and bases with a high pH are considered very dangerous.

a)

True

b)

False

15.

What is the range of the pH scale from lowest to highest?

a)

1 to 10

b)

1 to 15

c)

1 to 9

d)

1 to 14

16.

How do acids taste compared to bases?

a)

Acids are sweet and bases are bitter.

b)

Acids are sour and bases are bitter.

c)

Acids are bitter and bases are sweet.

d)

Acids are bitter and bases are sour.

17.

Acids are found on the pH scale between the numbers

a)

8 - 12

b)

0 - 6

18.

Bases are found on the pH scale between the numbers

a)

0 - 6

b)

8 -14

19.

If a solution is basic, which of the following properties would be present?

a)

Turns blue litmus paper red

b)

feels slippery

c)

reacts with metal to produce hydrogen gas

d)

tastes sour

20.

Common household cleaners, like drain cleaner, oxyclean, and ammonia, are usually classified as

a)

acids

b)

neutral

c)

bases

d)

none of these

21.

Which substance is closest to a neutral pH?

a)

milk

b)

vinegar

c)

ammonia

d)

milk of magnesia

22.

Vinegar is an acid. Like some other acids, vinegar tastes...

a)

sugary

b)

salty

c)

bitter

d)

sour