Question

Liquefied Petroleum gas (LPG) burns with a:

• A. yellow flame
• B. non-Luminous flame
• C. luminous flame
• D. yellow and smoky flame

Answer 1

The correct option is B non-Luminous flame

Non-luminous flames are the ones that burn blue. These flames have access to as much oxygen as they could possibly use, so they can burn very efficiently. All of the carbon that gets used can be turned into carbon dioxide, so there's actually no soot. Complete combustion of LPG takes place. Hence, it burns with a blue flame.