HVAC - EPA Certification Practice Exam

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What is chlorine primarily classified as?

A colorless, non-toxic gas

A toxic, irritant pale green gas

Chlorine is primarily classified as a toxic, irritant pale green gas due to its chemical properties and effects on human health. It is widely recognized as a hazardous substance, often used in disinfection and water treatment processes, but it can pose significant risks if inhaled. Chlorine gas has a distinct pale green color, and when exposed to it, individuals may experience irritation to the respiratory system, eyes, and skin. Understanding the toxic nature of chlorine is crucial for safety in handling and using it in various applications, such as in HVAC systems for sanitation purposes. This classification emphasizes the importance of adhering to safety protocols when working with chlorine gas to mitigate health risks.

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A flammable green liquid

A harmless yellow gas

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