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Chemical Reaction Classification Practice Test

Identify the Types of Chemical Reactions

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There are many different types of chemical reactions. There are single and double displacement reactions, combustion reactions, decomposition reactions and synthesis reactions. See if you can identify the type of reaction in this ten question chemical reaction classification practice test.

You may wish to review Types of Reactions before starting this test.

Answers appear after the final question.

Question 1

The chemical reaction:

2 H2O → 2 H2 + O2

is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 2

The chemical reaction:

2 H2 + O2 → 2 H2O is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 3

The chemical reaction:

2 KBr + Cl2 → 2 KCl + Br2 is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 4

The chemical reaction:

2 H2O2 → 2 H2O + O2 is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 5

The chemical reaction:

Zn + H2SO4 → ZnSO4 + H2 is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 6

The chemical reaction:

AgNO3 + NaCl → AgCl + NaNO3 is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 7

The chemical reaction:

C10H8 + 12 O2 → 10 CO2 + 4 H2O is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 8

The chemical reaction:

8 Fe + S8 → 8 FeS is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 9

The chemical reaction:

2 CO + O2 → 2 CO2 is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Question 10

The chemical reaction:

Ca(OH)2 + H2SO4 → CaSO4 + 2 H2O is a
a. synthesis reaction
b. decomposition reaction
c. single displacement reaction
d. double displacement reaction
e. combustion reaction

Answers

1. b. decomposition reaction
2. a. synthesis reaction
3. c. single displacement reaction
4. b. decomposition reaction
5. c. single displacement reaction 6. d. double displacement reaction
7. e. combustion reaction 8. a. synthesis reaction
9. a. synthesis reaction
10. d. double displacement reaction

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