1. Directions

You will read passages on the topic and then answer questions about them. You may find vocabulary at the end of the test. Read the questions carefully before choosing the correct answers.

2. Questions of the test

Question 1. What is charcoal made of?
A) Carbon and ash
B) Oxygen and water
C) Carbon and water
D) Carbon and sulfur

Question 2. How is charcoal typically produced?
A) Slow pyrolysis
B) Dehydration reaction with sulfuric acid
C) Rapid pyrolysis
D) Combustion

Question 3. How can charcoal be used in its purest form?
A) As a filter
B) As a catalyst
C) As an adsorbent
D) As a dietary supplement in the form of charcoal biscuits

Question 4. What is charcoal traditionally used for?
A) Art
B) Medicine
C) Metallurgical fuel
D) All of the above

Question 5. What is one way that charcoal has been used in the past?
A) As a filter
B) As a catalyst
C) As an adsorbent
D) As a dietary supplement in the form of charcoal biscuits