Which of the following compounds can be used as antifreeze in automobile radiators ? [2012 M]a)Methyl alcoholb)Glycolc)Nitrophenold)Ethyl alcoholCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

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.

• When the temperature of the coolant increases to its boiling point, the system boils over

Answer

Antifreeze Compounds in Automobile Radiators

Glycol:
- Glycol, specifically ethylene glycol, is a common compound used as an antifreeze in automobile radiators.
- It has a high boiling point and low freezing point, allowing it to effectively regulate the temperature of the engine.
- Ethylene glycol also has good heat transfer properties, which help in maintaining the engine at an optimal temperature.
- It is important to use the correct concentration of glycol in the radiator to prevent freezing or overheating of the engine.

Other Options:
- Methyl alcohol and ethyl alcohol are not commonly used as antifreeze in automobile radiators due to their lower boiling points and potential for engine damage.
- Nitrophenol is also not suitable for use as an antifreeze in radiators as it is a toxic compound that can be harmful to the environment and human health.

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