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Worksheets

Acids and Bases

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
2.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
3.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
4.
In a base phenolphthalein will give what color?
a)
Green
b)
Blue
c)
Pink
d)
Clear
5.
Which has a pH above 7?
a)
Acid
b)
Base
6.
Which has a pH below 7?
a)
Acid
b)
Base
7.
When put into a basic solution, red litmus paper ________.
a)
stays red
b)
turns blue
c)
turns magenta
d)
turns violet
8.

When acids react with metals, they produce hydrogen gas and salt.

a)

True

b)

False

9.

Which of the following are properties of acids?

a)

They conduct electricity when dissolved in water

b)

They taste sour

c)

They react with metals to produce hydrogen gas

d)

All of the answer choices are correct

10.

Which of the following is an acid?

a)

vinegar

b)

bleach

c)

sugar in water

d)

starch in water

e)

toothpaste in water

11.

An acid is a solution that contains __________ ions dissolved in water.

a)

positive

b)

negative

12.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

13.

The higher the concentration of negative (hydroxide) ions in the solution, the stronger the base is.

a)

True

b)

False

14.

Which of the following is a base?

a)

baking soda in water

b)

orange juice

c)

vinegar

d)

lemonade

15.

Which of the following statements is true concerning acids and bases?

a)

acids and bases don't react with each other

b)

acids mixed with bases neutralize each other

c)

acids mixed with bases make stronger bases

d)

acids mixed with bases make stronger acids

16.

Is pure water acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

17.

The pH scale is a range from:

a)

1-7

b)

0-14

c)

1-5

d)

1-14

18.

This ion is responsible for the properties of acids

a)

Sodium ion

b)

Hydrogen ion

c)

Hydroxide ion

d)

Oxide ion

19.

This ion is responsible for the properties of bases

a)

Sodium ion

b)

Hydrogen ion

c)

Hydroxide ion

d)

Oxide ion

20.

Neutralization is the process of an acid and a base reacting to form what? Select all that apply

a)

Salt

b)

Hydronium ions

c)

Hydroxide ions

d)

Water