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Objective V: Acids and Bases - Oxides

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

What type of oxide is copper(II) Oxide?


a)
  1. Amphoteric Oxide

b)
  1. Basic Oxide

c)
  1. Neutral Oxide

d)
  1. Acidic Oxide

2.

Amphoteric oxides are substances that

a)

Reacts with acids only

b)

Reacts with bases only

c)

Reacts with acids and bases

d)

Do not react with acids or bases

3.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
4.

ZnO is an oxide that can react with acids and bases, as shown in the following equations:

ZnO + H2SO4 --> ZnSO4 + H2O

ZnO +2NaOH -->Na2ZnO2 +H2O


What name is given to an oxide that reacts with both acids and bases?

a)

neutral

b)

acidic

c)

precipitate

d)

amphoteric

e)

displacement

5.

Which of the following oxides is most likely to be an acidic oxide?

a)

CuO

b)

Na2O

c)

MgO

d)

CO2

6.

Which of the following oxides is most likely to be an basic oxide?

a)

Al2O3

b)

H2O

c)

MgO

d)

CO2

7.

Select the statements that are true of basic oxides.

a)

They are oxides of metals.

b)

They dissolve in water to form acids.

c)

They react with acids to form salt and water.

d)

They react with bases to form salts and water.

8.
X reacts with an acid to form a salt and water. It does not react with alkali. X is...
a)
Basic
b)
Amphoteric
c)
Acidic
d)
Neutral
9.
Z does not react with either acid or alkali. Z is...
a)
Basic
b)
Amphoteric
c)
Acidic
d)
Neutral
10.

Which of the following shows the correct classification of oxide?

a)

Basic oxide:

aluminium oxide

b)

Acidic oxide:

carbon monoxide

c)

Amphoteric oxide: aluminium oxide

d)

Neutral oxide:

silicon dioxide