20. Which one of the following is used as an anti-freeze for the automobile engines ? A.Propyl alcohol B.Ethanol C.Methanol D.Ethylene glycol
Answer: Option D Solution: Ethylene glycol is a chemical commonly used in many commercial and industrial applications including antifreeze and coolant. Ethylene glycol helps keep your car's engine from freezing in the winter and acts as a coolant to reduce overheating in the summer.
