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Definition of Acid and Base

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Which is a characteristic of a base?

a)

Tastes sour.

b)

Found mostly in foods.

c)

Feels slippery.

d)

Turn litmus paper red.

2.

According to Arrhenius, what is the definition of an ACID?

a)

A substance that contains hydroxide and ionizes to produce OH-.

b)

A substance that contains hydrogen and ionizes to produce H+.

c)

A substance that contains hydrogen and ionizes to produce OH-.

d)

A substance that contains hydroxide and ionizes to produce H+.

3.

According to Bronsted-Lowry, what is the definition of a BASE?

a)

A substance that donates a hydrogen (H+) ion.

b)

A substance that donates a hydroxide (OH-) ion.

c)

A substance that accepts a hydrogen (H+) ion.

d)

A substance that accepts a hydroxide (OH-) ion.

4.

What is being donated/accepted between conjugate acid-base pairs?

a)

A hydrogen (H+) ion.

b)

A hydroxide (OH-) ion.

c)

Water.

d)

A neutron.

5.

What is the conjugate base in the following reaction?

a)

HCO3-

b)

HCl

c)

H2CO3

d)

Cl-

6.
What is the conjugate acid in the following equation?
a)
PO43- 
b)
HNO3 
c)
NO3- 
d)
HPO42-
7.

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

a)

HH4+ , OH-

b)

H2O , OH-

c)

CaCO3 ,CaCl2

d)

HNO3 , H2SO4

8.

If a solution is basic which ion will be more present?

a)

H+

b)

K+

c)

OH-

d)

H-

9.
NH3 + H2O --> NH4+ OH-
What is the conjugate acid according the Bronsted-Lowry model?
a)
NH3
b)
H2O
c)
NH4+
d)
OH-
10.

Barium hydroxide is a strong base.

a)

True

b)

False