Chemistry · Fundamental Principles of Organic Chemistry

Option A: Ethanol is not used as automobile antifreeze. Ethanol is a type of alcohol that is commonly used as a fuel additive or solvent. 

Option B: Ethene is not used as an automobile antifreeze because it is a gas at room temperature and pressure and does not have the necessary properties for use as an antifreeze. 

Option C: Ethylene glycol (antifreeze) is used in the cooling of a car radiator during the winter because it has a much lower freezing point than water. Its role in an automobile is to absorb heat from the engine.

Option D: Propene is not used as automobile antifreeze. Propene is a hydrocarbon that is used as a feedstock for the production of plastics and other chemicals. 

Ethanol is not used as automobile antifreeze. Ethanol is a type of alcohol that is commonly used as a fuel additive or solvent.

Ethene is not used as an automobile antifreeze because it is a gas at room temperature and pressure and does not have the necessary properties for use as an antifreeze.

Ethylene glycol (antifreeze) is used in the cooling of a car radiator during the winter because it has a much lower freezing point than water. Its role in an automobile is to absorb heat from the engine

Propene is not used as automobile antifreeze. Propene is a hydrocarbon that is used as a feedstock for the production of plastics and other chemicals.