Which of the following is a radioactive odorless gas?

Rationale

Radon is a radioactive odorless gas.

Radon is a naturally occurring radioactive gas that is colorless, tasteless, and odorless, making it particularly hazardous as it can accumulate in homes and buildings without detection. Its radioactive properties arise from the decay of uranium, which is found in soil and rock.

A (radon) CORRECT

Radon is indeed a radioactive gas that is produced from the decay of uranium and thorium in soil, rock, and water. It is notable for being odorless and tasteless, which can pose health risks as it can accumulate indoors, leading to potential exposure to harmful radiation.

B (asbestos) YOUR ANSWER

Asbestos is a naturally occurring mineral that was widely used for its insulating and fire-resistant properties. However, it is not a gas, nor is it radioactive. Asbestos is a fibrous material that can cause serious health issues when inhaled, but it does not emit radiation.

C (formaldehyde) YOUR ANSWER

Formaldehyde is a colorless gas with a strong odor, commonly used in building materials and household products. It is not radioactive; rather, it is classified as a volatile organic compound (VOC) that can cause health problems, particularly respiratory issues, but it does not possess radioactivity.

D (carbon monoxide) YOUR ANSWER

Carbon monoxide is a colorless, odorless gas produced by the incomplete combustion of fossil fuels. It is toxic to humans and can lead to poisoning, but it is not radioactive. It poses health risks primarily due to its ability to bind with hemoglobin in the blood, impairing oxygen transport.

Conclusion

Radon stands out as the only radioactive odorless gas among the given options, while asbestos, formaldehyde, and carbon monoxide do not share these characteristics. Understanding the properties of radon is crucial, especially in terms of health and environmental safety, as it can accumulate in homes without detection, leading to serious health risks.

Which of the following is a radioactive odorless gas?

Radon is a radioactive odorless gas.

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