_____________ has the widest inflammability limit (explosion limit) of all the gases?
Correct answer: B. Acetylene
- A. Hydrogen
- B. Acetylene
- C. Carbon monoxide
- D. Methane
Explanation
Acetylene burns over an especially broad concentration range in air, approximately 2.5% to 81% by volume. This is wider than the inflammability ranges of hydrogen, carbon monoxide, or methane.
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