Question

LPG burns more cleanly than higher molecular weight hydrocarbon :

• A. because it releases volatile pollutants
• B. because it releases less pollutants
• C. because it releases pollutants which are toxic
• D. because it releases more pollutants

Answer 1

Answer: (B)

because it releases less pollutants

LPG burns more cleanly than higher molecular weight hydrocarbon because it releases fewer pollutants. Being a gas, LPG does not cause ground or water pollution hazards, but it causes air pollution.
Note: LPG is liquefied petroleum gas which is a compound of butane and propane used in cooking fuel ( in heating appliances, cooking equipment), motor fuel (in vehicles), and refrigeration.