Multiple choice

Coal gas is mainly a mixture of which of the following gases?

a. Methane b. Hydrogen c. Carbon monoxide d. Butane

  1. Only a and d

  2. Only a, b and c

  3. Only c and d

  4. Only a, b and d

  5. Only b, c and d

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. Coal gas is mainly a mixture of methane, hydrogen and some carbon monoxide.